# Baryon Particle Listings

Ξ(1820), Ξ(1950)

<table><tbody><tr><td>103</td><td>+38/24</td><td>3 CRENNELL</td><td>70B DBC</td><td>-0</td><td>3.6, 3.9 GeV/c</td></tr><tr><td>48</td><td>+36/19</td><td>4 CRENNELL</td><td>70B DBC</td><td>-0</td><td>3.6, 3.9 GeV/c</td></tr><tr><td>55</td><td>+40/20</td><td>ALITTI</td><td>69 HBC</td><td>-</td><td>Λ, ΣK</td></tr><tr><td>12</td><td>± 4</td><td>BADIER</td><td>65 HBC</td><td>0</td><td>ΛK<sup>0</sup></td></tr><tr><td>30</td><td>± 7</td><td>SMITH</td><td>65B HBC</td><td>-0</td><td>ΛK</td></tr><tr><td>&lt;80</td><td></td><td>HALSTEINSLID63</td><td>FBC</td><td>-0</td><td>K<sup>-</sup> freon 3.5 GeV/c</td></tr></tbody></table>

WEIGHTED AVERAGE
24±5 (Error scaled by 1.3)

<figure><img src="image_736.png" /></figure>

## Ξ(1820) DECAY MODES

<table><thead><tr><th>Mode</th><th>Fraction (Γ<sub>i</sub>/Γ)</th></tr></thead><tbody><tr><td>Γ<sub>1</sub> ΛK</td><td>large</td></tr><tr><td>Γ<sub>2</sub> ΣK</td><td>small</td></tr><tr><td>Γ<sub>3</sub> Ξπ</td><td>small</td></tr><tr><td>Γ<sub>4</sub> Ξ(1530)π</td><td>small</td></tr><tr><td>Γ<sub>5</sub> Ξππ(not Ξ(1530)π)</td><td></td></tr></tbody></table>

## Ξ(1820) BRANCHING RATIOS

The dominant modes seem to be ΛK and (perhaps) Ξ(1530)π, but the branching fractions are very poorly determined.

<table><caption>Γ(ΛK)/Γ<sub>total</sub></caption><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>CHG</th><th>COMMENT</th></tr></thead><tbody><tr><td colspan="5"><strong>0.25±0.05 OUR AVERAGE</strong></td></tr><tr><td>0.24±0.05</td><td>ANISOVICH</td><td>12A</td><td>DPWA</td><td>Multichannel</td></tr><tr><td>0.30±0.15</td><td>ALITTI</td><td>69</td><td>HBC</td><td>K<sup>-</sup> p 3.9-5 GeV/c</td></tr></tbody></table>

<table><caption>Γ(Ξπ)/Γ<sub>total</sub></caption><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>CHG</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.10±0.10</td><td>ALITTI</td><td>69</td><td>HBC</td><td>K<sup>-</sup> p 3.9-5 GeV/c</td></tr></tbody></table>

<table><caption>Γ(Ξπ)/Γ(ΛK)</caption><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>CHG</th><th>COMMENT</th></tr></thead><tbody><tr><td><strong>&lt;0.36</strong></td><td>GAY</td><td>76c</td><td>HBC</td><td>K<sup>-</sup> p 4.2 GeV/c</td></tr><tr><td>0.20±0.20</td><td>BADIER</td><td>65</td><td>HBC</td><td>K<sup>-</sup> p 3 GeV/c</td></tr></tbody></table>

<table><caption>Γ(Ξπ)/Γ(Ξ(1530)π)</caption><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>CHG</th><th>COMMENT</th></tr></thead><tbody><tr><td>1.5+0.6-0.4</td><td>APSELL</td><td>70</td><td>HBC</td><td>K<sup>-</sup> p 2.87 GeV/c</td></tr></tbody></table>

<table><caption>Γ(ΣK)/Γ<sub>total</sub></caption><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>CHG</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.30±0.15</td><td>ALITTI</td><td>69</td><td>HBC</td><td>K<sup>-</sup> p 3.9-5 GeV/c</td></tr></tbody></table>

• • • We do not use the following data for averages, fits, limits, etc.
<0.02 TRIPP 67 RVUE Use SMITH 65c

<table><caption>Γ(ΣK)/Γ(ΛK)</caption><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>CHG</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.24±0.10</td><td>GAY</td><td>76c</td><td>HBC</td><td>K<sup>-</sup> p 4.2 GeV/c</td></tr></tbody></table>

<table><caption>Γ(Ξ(1530)π)/Γ<sub>total</sub></caption><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>CHG</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.30±0.15</td><td>ALITTI</td><td>69</td><td>HBC</td><td>K<sup>-</sup> p 3.9-5 GeV/c</td></tr></tbody></table>

• • • We do not use the following data for averages, fits, limits, etc.
seen
not seen
<0.25 ASTON 85B LASS K<sup>-</sup> p 11 GeV/c
5 HASSALL 81 HBC K<sup>-</sup> p 6.5 GeV/c
6 BADIER 69 HBC K<sup>-</sup> p 2.7 GeV/c

<table><caption>Γ(Ξ(1530)π)/Γ(ΛK)</caption><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>CHG</th><th>COMMENT</th></tr></thead><tbody><tr><td colspan="5"><strong>0.38±0.27 OUR AVERAGE</strong></td></tr><tr><td>1.0 ±0.3</td><td>GAY</td><td>76c</td><td>HBC</td><td>K<sup>-</sup> p 4.2 GeV/c</td></tr><tr><td>0.26±0.13</td><td>SMITH</td><td>65c</td><td>HBC</td><td>K<sup>-</sup> p 2.45-2.7 GeV/c</td></tr></tbody></table>

<table><caption>Γ(Ξππ(not Ξ(1530)π))/Γ(ΛK)</caption><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>CHG</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.30±0.20</td><td>BIAGI</td><td>87</td><td>SPEC</td><td>K<sup>-</sup> Be 116 GeV</td></tr><tr><td colspan="5">• • • We do not use the following data for averages, fits, limits, etc.</td></tr><tr><td>&lt;0.14</td><td>7 BADIER</td><td>65</td><td>HBC</td><td>1 st. dev. limit</td></tr><tr><td>&gt;0.1</td><td>SMITH</td><td>65c</td><td>HBC</td><td>K<sup>-</sup> p 2.45-2.7 GeV/c</td></tr></tbody></table>

<table><caption>Γ(Ξππ(not Ξ(1530)π))/Γ(Ξ(1530)π)</caption><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>CHG</th><th>COMMENT</th></tr></thead><tbody><tr><td>consistent with zero</td><td>GAY</td><td>76c</td><td>HBC</td><td>K<sup>-</sup> p 4.2 GeV/c</td></tr><tr><td colspan="5">• • • We do not use the following data for averages, fits, limits, etc.</td></tr><tr><td>0.3±0.5</td><td>8 APSELL</td><td>70</td><td>HBC</td><td>K<sup>-</sup> p 2.87 GeV/c</td></tr></tbody></table>

## Ξ(1820) FOOTNOTES

1. BIAGI 87 also shows weak signals in the in the Ξ<sup>-</sup>π<sup>+</sup>π<sup>-</sup> channel at 1782.6 ± 1.4 MeV (Γ = 6.0 ± 1.5 MeV) and 1831.9 ± 2.8 MeV (Γ = 9.6 ± 9.9 MeV).

2. BADIER 72 adds all channels and divides the peak into lower and higher mass regions. The data can also be fitted with a single Breit-Wigner of mass 1800 MeV and width 150 MeV.

3. From a fit to inclusive Ξπ, Ξππ, and ΛK<sup>-</sup> spectra.

4. From a fit to inclusive Ξπ and Ξππ spectra only.

5. Including Ξππ.

6. DAUBER 69 uses in part the same data as SMITH 65c.

7. For the decay mode Ξ<sup>-</sup>π<sup>+</sup>π<sup>-</sup> only, this limit includes Ξ(1530)π.

8. Or less. Upper limit for the 3-body decay.

## Ξ(1820) REFERENCES

<table><tbody><tr><td>ABLIKIM</td><td>20C</td><td>PRL 124 032002</td><td>M. Ablikim et al. (BESIII Collab.)</td></tr><tr><td>ANISOVICH</td><td>12A</td><td>EPJ A48 15</td><td>A.V. Anisovich et al. (BONN, PNPI)</td></tr><tr><td>ADAMOVICH</td><td>99B</td><td>EPJ C11 271</td><td>M.I. Adamovich et al. (CERN WA89 Collab.)</td></tr><tr><td>BIAGI</td><td>87</td><td>ZPHY C34 15</td><td>S.F. Biagi et al. (BRIS, CERN, GEVA+)</td></tr><tr><td>BIAGI</td><td>87C</td><td>ZPHY C34 175</td><td>S.F. Biagi et al. (BRIS, CERN, GEVA+)</td></tr><tr><td>ASTON</td><td>85B</td><td>PR D32 2270</td><td>D. Aston et al. (SLAC, CARL, CNRC, CINC)</td></tr><tr><td>JENKINS</td><td>83</td><td>PRL 51 951</td><td>C.M. Jenkins et al. (FSU, BRAN, LBL+)</td></tr><tr><td>BIAGI</td><td>81</td><td>ZPHY C9 305</td><td>S.F. Biagi et al. (BRIS, CAVE, GEVA+)</td></tr><tr><td>HASSALL</td><td>81</td><td>NP B189 397</td><td>J.K. Hassall et al. (CAVE, MSU)</td></tr><tr><td>TEODORO</td><td>78</td><td>PL 77B 451</td><td>D. Teodoro et al. (AMST, CERN, NIJM+)</td></tr><tr><td>BRIEFEL</td><td>77</td><td>PR D16 2706</td><td>E. Briefel et al. (BRAN, UMD, SYRA+)</td></tr><tr><td></td><td></td><td>PRL 23 884</td><td>S.P. Apsell et al. (BRAN, UMD, SYRA+)</td></tr><tr><td>GAY</td><td>76C</td><td>PL 62B 477</td><td>J.B. Gay et al. (AMST, CERN, NIJM) IJ</td></tr><tr><td>DIBIANCA</td><td>75</td><td>NP B98 137</td><td>F.A. Dibianca, R.J. Endorf (CMU)</td></tr><tr><td>BADIER</td><td>72</td><td>NP B37 429</td><td>J. Badier et al. (EPOL)</td></tr><tr><td>APSELL</td><td>70</td><td>PRL 24 777</td><td>S.P. Apsell et al. (BRAN, UMD, SYRA+)</td></tr><tr><td>CRENNELL</td><td>70B</td><td>PR D1 847</td><td>D.J. Crennell et al. (BNL)</td></tr><tr><td>ALITTI</td><td>69</td><td>PR 22 79</td><td>J. Alitti et al. (BNL, SYRA) I</td></tr><tr><td>DAUBER</td><td>69</td><td>PR 179 1262</td><td>P.M. Dauber et al. (LRL)</td></tr><tr><td>TRIPP</td><td>67</td><td>PR B3 10</td><td>R.D. Tripp et al. (LRL, SLAC, CERN+)</td></tr><tr><td>BADIER</td><td>65</td><td>PL 16 171</td><td>J. Badier et al. (EPOL, SACL, AMST) I</td></tr><tr><td>SMITH</td><td>65B</td><td>ATHLETIC Conf. 251</td><td>G.A. Smith, J.S. Lindsey (LRL)</td></tr><tr><td>SMITH</td><td>65C</td><td>PRL 14 25</td><td>G.A. Smith et al. (LRL) IJP</td></tr><tr><td>HALSTEINSLID63</td><td>8</td><td>Siena Conf. 1 73</td><td>A. Halsteinslid et al. (BERG, CERN, EPOL+) I</td></tr></tbody></table>

## OTHER RELATED PAPERS

<table><tbody><tr><td>TEODORO</td><td>78</td><td>PL 77B 451</td><td>D. Teodoro et al. (AMST, CERN, NIJM+) JP</td></tr><tr><td>BRIEFEL</td><td>75</td><td>PR D12 1859</td><td>E. Briefel et al. (BRAN, UMD, SYRA+)</td></tr><tr><td>SCHMIDT</td><td>73</td><td>Purdue Conf. 363</td><td>P.E. Schmidt (BRAN)</td></tr><tr><td>MERRILL</td><td>68</td><td>PR 167 1202</td><td>D.W. Merrill, J. Button-Shafer (LRL)</td></tr><tr><td>SMITH</td><td>64</td><td>PRL 13 61</td><td>G.A. Smith et al. (LRL) IJP</td></tr></tbody></table>

Ξ(1950)

$$I(J^P) = \frac{1}{2}(\beta^2) \quad \text{Status: } \ast\ast\ast$$

We list here everything reported between 1875 and 2000 MeV. The accumulated evidence for a Ξ near 1950 MeV seems strong enough to include a Ξ(1950) in the main Baryon Table, but not much can be said about its properties. In fact, there may be more than one Ξ near this mass.

## Ξ(1950) MASS

<table><thead><tr><th>VALUE (MeV)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td colspan="5"><strong>1950±15 OUR ESTIMATE</strong></td></tr><tr><td>1955 ± 6</td><td></td><td>ADAMOVICH</td><td>99B WA89</td><td>Σ<sup>-</sup> nucleus, 345 GeV</td></tr><tr><td>1944 ± 9</td><td>129</td><td>BIAGI</td><td>87 SPEC</td><td>Ξ<sup>-</sup> Be → (Ξ<sup>-</sup>π<sup>+</sup>)π<sup>-</sup>X</td></tr><tr><td>1963 ± 5 ± 2</td><td>63</td><td>BIAGI</td><td>87c SPEC</td><td>Ξ<sup>-</sup> Be → (ΛK<sup>0</sup>) X</td></tr><tr><td>1937 ± 7</td><td>150</td><td>BIAGI</td><td>81 SPEC</td><td>SPS hyperon beam</td></tr><tr><td>1961 ± 18</td><td>139</td><td>BRIEFEL</td><td>77 HBC</td><td>2.87 K<sup>-</sup> p → Ξ<sup>-</sup>π<sup>+</sup>X</td></tr><tr><td>1936 ± 22</td><td>44</td><td>BRIEFEL</td><td>77 HBC</td><td>2.87 K<sup>-</sup> p → Ξ<sup>-</sup>0π<sup>-</sup>X</td></tr><tr><td>1964 ± 10</td><td>56</td><td>BRIEFEL</td><td>77 HBC</td><td>Ξ(1530)π</td></tr><tr><td>1900 ± 12</td><td></td><td>DIBIANCA</td><td>75 DBC</td><td>Ξπ</td></tr><tr><td>1952 ± 11</td><td>25</td><td>ROSS</td><td>73c</td><td>(Ξπ)<sup>-</sup></td></tr><tr><td>1956 ± 6</td><td>29</td><td>BADIER</td><td>72 HBC</td><td>Ξπ, Ξππ, Y K</td></tr></tbody></table>
Ξ(2030) BRANCHING RATIOS

$$ \begin{array}{l} \Gamma(\Xi\pi)/[\Gamma(\Lambda\bar{K}) + \Gamma(\Sigma\bar{K}) + \Gamma(\Xi\pi) + \Gamma(\Xi(1530)\pi)] \\ \text{VALUE} \qquad \text{DOCUMENT ID} \qquad \text{TECN} \qquad \text{CHG} \qquad \text{COMMENT} \end{array} \quad \begin{array}{l} \Gamma_3/(\Gamma_1+\Gamma_2+\Gamma_3+\Gamma_4) \\ \text{VALUE} \qquad \text{DOCUMENT ID} \qquad \text{TECN} \qquad \text{CHG} \qquad \text{COMMENT} \end{array} $$

• • • We do not use the following data for averages, fits, limits, etc. • • •

<table><tr><td>&lt;0.30</td><td>ALITTI</td><td>69</td><td>HBC</td><td>-</td><td>1 standard dev. limit</td></tr></table>

$$ \begin{array}{l} \Gamma(\Xi\pi)/\Gamma(\Sigma\bar{K}) \\ \text{VALUE} \qquad \text{CL\%} \qquad \text{DOCUMENT ID} \qquad \text{TECN} \qquad \text{CHG} \qquad \text{COMMENT} \\ <0.19 \qquad 95 \qquad HEMINGWAY \qquad 77 \qquad HBC \qquad - \qquad K^{-} p 4.2 \text{ GeV/c} \end{array} \quad \begin{array}{l} \Gamma_3/\Gamma_2 \\ \text{VALUE} \qquad \text{DOCUMENT ID} \qquad \text{TECN} \qquad \text{CHG} \qquad \text{COMMENT} \end{array} $$

$$ \begin{array}{l} \Gamma(\Lambda\bar{K})/[\Gamma(\Lambda\bar{K}) + \Gamma(\Sigma\bar{K}) + \Gamma(\Xi\pi) + \Gamma(\Xi(1530)\pi)] \\ \text{VALUE} \qquad \text{CL\%} \qquad \text{DOCUMENT ID} \qquad \text{TECN} \qquad \text{CHG} \qquad \text{COMMENT} \\ 0.25 \pm 0.15 \qquad 69 \qquad HBC \qquad - \qquad K^{-} p 3.9-5 \text{ GeV/c} \end{array} \quad \begin{array}{l} \Gamma_1/(\Gamma_1+\Gamma_2+\Gamma_3+\Gamma_4) \\ \text{VALUE} \qquad \text{DOCUMENT ID} \qquad \text{TECN} \qquad \text{CHG} \qquad \text{COMMENT} \end{array} $$

$$ \begin{array}{l} \Gamma(\Lambda\bar{K})/\Gamma(\Sigma\bar{K}) \\ \text{VALUE} \qquad \text{CL\%} \qquad \text{DOCUMENT ID} \qquad \text{TECN} \qquad \text{CHG} \qquad \text{COMMENT} \\ 0.22 \pm 0.09 \qquad 77 \qquad HBC \qquad - \qquad K^{-} p 4.2 \text{ GeV/c} \end{array} \quad \begin{array}{l} \Gamma_1/\Gamma_2 \\ \text{VALUE} \qquad \text{DOCUMENT ID} \qquad \text{TECN} \qquad \text{CHG} \qquad \text{COMMENT} \end{array} $$

$$ \begin{array}{l} \Gamma(\Sigma\bar{K})/[\Gamma(\Lambda\bar{K}) + \Gamma(\Sigma\bar{K}) + \Gamma(\Xi\pi) + \Gamma(\Xi(1530)\pi)] \\ \text{VALUE} \qquad \text{CL\%} \qquad \text{DOCUMENT ID} \qquad \text{TECN} \qquad \text{CHG} \qquad \text{COMMENT} \\ 0.75 \pm 0.20 \qquad 69 \qquad HBC \qquad - \qquad K^{-} p 3.9-5 \text{ GeV/c} \end{array} \quad \begin{array}{l} \Gamma_4/(\Gamma_1+\Gamma_2+\Gamma_3+\Gamma_4) \\ \text{VALUE} \qquad \text{DOCUMENT ID} \qquad \text{TECN} \qquad \text{CHG} \qquad \text{COMMENT} \end{array} $$

$$ \begin{array}{l} \Gamma(\Xi(1530)\pi)/[\Gamma(\Lambda\bar{K}) + \Gamma(\Sigma\bar{K}) + \Gamma(\Xi\pi) + \Gamma(\Xi(1530)\pi)] \\ \text{VALUE} \qquad \text{DOCUMENT ID} \qquad \text{TECN} \qquad \text{CHG} \qquad \text{COMMENT} \end{array} \quad \begin{array}{l} \Gamma_4/(\Gamma_1+\Gamma_2+\Gamma_3+\Gamma_4) \\ \text{VALUE} \qquad \text{DOCUMENT ID} \qquad \text{TECN} \qquad \text{CHG} \qquad \text{COMMENT} \end{array} $$

• • • We do not use the following data for averages, fits, limits, etc. • • •

<table><tr><td>&lt;0.15</td><td>ALITTI</td><td>69</td><td>HBC</td><td>-</td><td>1 standard dev. limit</td></tr></table>

$$ \begin{array}{l} [\Gamma(\Xi(1530)\pi) + \Gamma(\Xi\pi\pi(\text{not } \Xi(1530)\pi))]/[\Gamma(\Sigma\bar{K})] \\ \text{VALUE} \qquad \text{CL\%} \qquad \text{DOCUMENT ID} \qquad \text{TECN} \qquad \text{CHG} \qquad \text{COMMENT} \\ <0.11 \qquad 95 \qquad 1 \qquad HEMINGWAY \qquad 77 \qquad HBC \qquad - \qquad K^{-} p 4.2 \text{ GeV/c} \end{array} \quad \begin{array}{l} (\Gamma_4+\Gamma_5)/\Gamma_2 \\ \text{VALUE} \qquad \text{DOCUMENT ID} \qquad \text{TECN} \qquad \text{CHG} \qquad \text{COMMENT} \end{array} $$

$$ \begin{array}{l} \Gamma(\Lambda\bar{K}\pi)/\Gamma_{\text{total}} \\ \text{VALUE} \qquad \text{DOCUMENT ID} \qquad \text{TECN} \qquad \text{COMMENT} \end{array} \quad \begin{array}{l} \Gamma_6/\Gamma \\ \text{VALUE} \qquad \text{DOCUMENT ID} \qquad \text{TECN} \qquad \text{COMMENT} \end{array} $$

• • • We do not use the following data for averages, fits, limits, etc. • • •

<table><tr><td>seen</td><td>BARTSCH</td><td>69</td><td>HBC</td><td>K<sup>-</sup> p 10 GeV</td></tr></table>

$$ \begin{array}{l} \Gamma(\Lambda\bar{K}\pi)/\Gamma(\Sigma\bar{K}) \\ \text{VALUE} \qquad \text{CL\%} \qquad \text{DOCUMENT ID} \qquad \text{TECN} \qquad \text{CHG} \qquad \text{COMMENT} \\ <0.32 \qquad 95 \qquad HEMINGWAY \qquad 77 \qquad HBC \qquad - \qquad K^{-} p 4.2 \text{ GeV/c} \end{array} \quad \begin{array}{l} \Gamma_6/\Gamma_2 \\ \text{VALUE} \qquad \text{DOCUMENT ID} \qquad \text{TECN} \qquad \text{CHG} \qquad \text{COMMENT} \end{array} $$

$$ \begin{array}{l} \Gamma(\Sigma\bar{K}\pi)/\Gamma_{\text{total}} \\ \text{VALUE} \qquad \text{DOCUMENT ID} \qquad \text{TECN} \qquad \text{COMMENT} \end{array} \quad \begin{array}{l} \Gamma_7/\Gamma \\ \text{VALUE} \qquad \text{DOCUMENT ID} \qquad \text{TECN} \qquad \text{COMMENT} \end{array} $$

• • • We do not use the following data for averages, fits, limits, etc. • • •

<table><tr><td>seen</td><td>BARTSCH</td><td>69</td><td>HBC</td><td>K<sup>-</sup> p 10 GeV</td></tr></table>

$$ \begin{array}{l} \Gamma(\Sigma\bar{K}\pi)/\Gamma(\Sigma\bar{K}) \\ \text{VALUE} \qquad \text{CL\%} \qquad \text{DOCUMENT ID} \qquad \text{TECN} \qquad \text{CHG} \qquad \text{COMMENT} \\ <0.04 \qquad 95 \qquad 2 \qquad HEMINGWAY \qquad 77 \qquad HBC \qquad - \qquad K^{-} p 4.2 \text{ GeV/c} \end{array} \quad \begin{array}{l} \Gamma_7/\Gamma_2 \\ \text{VALUE} \qquad \text{DOCUMENT ID} \qquad \text{TECN} \qquad \text{CHG} \qquad \text{COMMENT} \end{array} $$

Ξ(2030) FOOTNOTES

¹For the decay mode Ξ⁻π⁺π⁻ only.

²For the decay mode Σ⁺K⁻π⁺ only.

Ξ(2030) REFERENCES

<table><tr><td>JENKINS</td><td>83</td><td>PRL 51 951</td></tr><tr><td>HEMINGWAY</td><td>77</td><td>PL 68B 197</td></tr><tr><td>Also</td><td></td><td>PL 62B 477</td></tr><tr><td>DIBIANCA</td><td>75</td><td>NP B98 137</td></tr><tr><td>ROSS</td><td>73C</td><td>Purdue Conf. 345</td></tr><tr><td>ALITTI</td><td>69</td><td>PRL 22 79</td></tr><tr><td>BARTSCH</td><td>69</td><td>PL 28B 439</td></tr><tr><td>ALITTI</td><td>68</td><td>PRL 21 1119</td></tr></table>

<table><tr><td>C.M. Jenkins et al.</td><td>(FSU, BRAN, LBL+)</td></tr><tr><td>R.J. Hemingway et al.</td><td>(AMST, CERN, NIJM+)</td></tr><tr><td>J.B. Gay et al.</td><td>(AMST, CERN, NIJM)</td></tr><tr><td>F.A. Dibianca, R.J. Endorf</td><td>(CHU)</td></tr><tr><td>R.T. Ross, J.L. Lloyd, D. Radojicic</td><td>(OXF)</td></tr><tr><td>J. Alitti et al.</td><td>(BNL, SYRA)</td></tr><tr><td>J. Bartsch et al.</td><td>(AACH, BERL, CERN+)</td></tr><tr><td>J. Alitti et al.</td><td>(BNL, SYRA)</td></tr></table>

Ξ(2120)

$I(J^P) = \frac{1}{2}(?^2)$ Status: *

J, P need confirmation.

OMITTED FROM SUMMARY TABLE

Ξ(2120) MASS

<table><thead><tr><th>VALUE (MeV)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td colspan="5">≈ 2120 OUR ESTIMATE</td></tr><tr><td>2137 ± 4</td><td>18</td><td>1 CHLIAPNIK...</td><td>79</td><td>K<sup>+</sup> p 32 GeV/c</td></tr><tr><td>2123 ± 7</td><td></td><td>2 GAY</td><td>76c</td><td>K<sup>-</sup> p 4.2 GeV/c</td></tr></tbody></table>



Ξ(2120) WIDTH

<table><thead><tr><th>VALUE (MeV)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>&lt;20</td><td>18</td><td>1 CHLIAPNIK...</td><td>79</td><td>HBC</td></tr><tr><td>25 ± 12</td><td></td><td>2 GAY</td><td>76c</td><td>HBC</td></tr></tbody></table>

Ξ(2120) DECAY MODES

<table><thead><tr><th>Mode</th><th>Fraction (Γ<sub>f</sub>/Γ)</th></tr></thead><tbody><tr><td>Γ<sub>1</sub> ΛK̄</td><td>seen</td></tr></tbody></table>

Ξ(2120) BRANCHING RATIOS

<table><thead><tr><th>Γ(ΛK̄)/Γ<sub>total</sub></th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>seen</td><td>1 CHLIAPNIK...</td><td>79</td><td>HBC</td></tr><tr><td>seen</td><td>2 GAY</td><td>76c</td><td>HBC</td></tr></tbody></table>

Ξ(2120) FOOTNOTES

¹CHLIAPNIKOV 79 does not uniquely identify the K⁺ in the (ΛK⁺) X final state. It also reports bumps with fewer events at 2240, 2540, and 2830 MeV.

²GAY 76C sees a 4-standard deviation signal. However, HEMINGWAY 77, with more events from the same experiment points out that the signal is greatly reduced if a cut is made on the 4-momentum u. This suggests an anomalous production mechanism if the Ξ(2120) is real.

Ξ(2120) REFERENCES

<table><tr><td>CHLIAPNIK...</td><td>79</td><td>NP B158 253</td></tr><tr><td>HEMINGWAY</td><td>77</td><td>PL 68B 197</td></tr><tr><td>GAY</td><td>76c</td><td>PL 62B 477</td></tr></table>

<table><tr><td>P.V. Chliapnikov et al.</td><td>(CERN, BELG, MONS)</td></tr><tr><td>R.J. Hemingway et al.</td><td>(AMST, CERN, NIJM+)</td></tr><tr><td>J.B. Gay et al.</td><td>(AMST, CERN, NIJM)</td></tr></table>

Ξ(2250)

$I(J^P) = \frac{1}{2}(?^2)$ Status: **

J, P need confirmation.

OMITTED FROM SUMMARY TABLE

The evidence for this state is mixed. BARTSCH 69 sees a bump of not much statistical significance in ΛKπ, ΣKπ, and Ξππ mass spectra. GOLDWASSER 70 sees a narrower bump in Ξππ at a higher mass. Not seen by HASSALL 81 with 45 events/μb at 6.5 GeV/c. Seen by JENKINS 83. Perhaps seen by BIAGI 87.

Ξ(2250) MASS

<table><thead><tr><th>VALUE (MeV)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>CHG</th><th>COMMENT</th></tr></thead><tbody><tr><td>≈ 2250 OUR ESTIMATE</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2189 ± 7</td><td>66</td><td>BIAGI</td><td>87</td><td>SPEC</td><td>-</td><td>Ξ⁻ Be → (Ξ⁻π⁺π⁻) X</td></tr><tr><td>2214 ± 5</td><td></td><td>JENKINS</td><td>83</td><td>MPS</td><td>-</td><td>K⁻ p → K⁺ MM</td></tr><tr><td>2295 ± 15</td><td>18</td><td>GOLDWASSER</td><td>70</td><td>HBC</td><td>-</td><td>K⁻ p 5.5 GeV/c</td></tr><tr><td>2244 ± 52</td><td>35</td><td>BARTSCH</td><td>69</td><td>HBC</td><td>-</td><td>K⁻ p 10 GeV/c</td></tr></tbody></table>

Ξ(2250) WIDTH

<table><thead><tr><th>VALUE (MeV)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>CHG</th><th>COMMENT</th></tr></thead><tbody><tr><td>46 ± 27</td><td>66</td><td>BIAGI</td><td>87</td><td>SPEC</td><td>-</td><td>Ξ⁻ Be → (Ξ⁻π⁺π⁻) X</td></tr><tr><td>&lt; 30</td><td></td><td>GOLDWASSER</td><td>70</td><td>HBC</td><td>-</td><td>K⁻ p 5.5 GeV/c</td></tr><tr><td>130 ± 80</td><td></td><td>BARTSCH</td><td>69</td><td>HBC</td><td>-</td><td>K⁻ p 10 GeV/c</td></tr></tbody></table>

Ξ(2250) DECAY MODES

<table><thead><tr><th>Mode</th></tr></thead><tbody><tr><td>Γ<sub>1</sub> Ξππ</td></tr><tr><td>Γ<sub>2</sub> ΛK̄π</td></tr><tr><td>Γ<sub>3</sub> ΣK̄π</td></tr></tbody></table>

Ξ(2250) REFERENCES

<table><tr><td>BIAGI</td><td>87</td><td>ZPHY C34 15</td></tr><tr><td>JENKINS</td><td>83</td><td>PRL 51 951</td></tr><tr><td>HASSALL</td><td>81</td><td>NP B189 397</td></tr><tr><td>GOLDWASSER</td><td>70</td><td>PR D1 1960</td></tr><tr><td>BARTSCH</td><td>69</td><td>PL 28B 439</td></tr></table>

<table><tr><td>S.F. Biagi et al.</td><td>(BRIS, CERN, GEVA+)</td></tr><tr><td>C.M. Jenkins et al.</td><td>(FSU, BRAN, LBL+)</td></tr><tr><td>J.K. Hassall et al.</td><td>(CAVE, MSU)</td></tr><tr><td>E.L. Goldwasser, P.F. Schultz</td><td>(ILL)</td></tr><tr><td>J. Bartsch et al.</td><td>(AACH, BERL, CERN+)</td></tr></table>
$Ξ(2370)$

$I(J^P) = \frac{1}{2}(?^2)$ Status: **
J, P need confirmation.

OMITTED FROM SUMMARY TABLE

Ξ(2370) MASS

<table><thead><tr><th>VALUE (MeV)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>CHG</th><th>COMMENT</th></tr></thead><tbody><tr><td colspan="6"><strong>≈ 2370 OUR ESTIMATE</strong></td></tr><tr><td>2356 ± 10</td><td></td><td>JENKINS</td><td>83</td><td>MPS</td><td>K<sup>-</sup> p → K<sup>+</sup> MM</td></tr><tr><td>2370</td><td>50</td><td>HASSALL</td><td>81</td><td>HBC</td><td>K<sup>-</sup> p 6.5 GeV/c</td></tr><tr><td>2373 ± 8</td><td>94</td><td>AMIRZADEH</td><td>80</td><td>HBC</td><td>K<sup>-</sup> p 8.25 GeV/c</td></tr><tr><td>2392 ± 27</td><td></td><td>DIBIANCA</td><td>75</td><td>DBC</td><td>Ξ2π</td></tr></tbody></table>

Ξ(2370) WIDTH

<table><thead><tr><th>VALUE (MeV)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>CHG</th><th>COMMENT</th></tr></thead><tbody><tr><td>80</td><td>50</td><td>HASSALL</td><td>81</td><td>HBC</td><td>K<sup>-</sup> p 6.5 GeV/c</td></tr><tr><td>80 ± 25</td><td>94</td><td>AMIRZADEH</td><td>80</td><td>HBC</td><td>K<sup>-</sup> p 8.25 GeV/c</td></tr><tr><td>75 ± 69</td><td></td><td>DIBIANCA</td><td>75</td><td>DBC</td><td>Ξ2π</td></tr></tbody></table>

Ξ(2370) DECAY MODES

<table><thead><tr><th>Mode</th><th>Fraction (Γ<sub>i</sub>/Γ)</th></tr></thead><tbody><tr><td>Γ<sub>1</sub> ΛK̄π</td><td>seen</td></tr><tr><td>Γ<sub>2</sub> ΣK̄π</td><td>seen</td></tr><tr><td>Γ<sub>3</sub> Ω<sup>-</sup>K</td><td></td></tr><tr><td>Γ<sub>4</sub> ΛK̄*(892)</td><td></td></tr><tr><td>Γ<sub>5</sub> ΣK̄*(892)</td><td></td></tr><tr><td>Γ<sub>6</sub> Σ(1385)K̄</td><td></td></tr></tbody></table>

Ξ(2370) BRANCHING RATIOS

<table><thead><tr><th>Γ(ΛK̄π)/Γ<sub>total</sub></th><th>Γ<sub>1</sub>/Γ</th></tr></thead><tbody><tr><td>VALUE</td><td></td></tr><tr><td>seen</td><td></td></tr></tbody></table>

<table><thead><tr><th>Γ(ΣK̄π)/Γ<sub>total</sub></th><th>Γ<sub>2</sub>/Γ</th></tr></thead><tbody><tr><td>VALUE</td><td></td></tr><tr><td>seen</td><td></td></tr></tbody></table>

<table><thead><tr><th>[Γ(ΛK̄π) + Γ(ΣK̄π)]/Γ<sub>total</sub></th><th>(Γ<sub>1</sub>+Γ<sub>2</sub>)/Γ</th></tr></thead><tbody><tr><td>VALUE</td><td></td></tr><tr><td>seen</td><td></td></tr></tbody></table>

<table><thead><tr><th>Γ(Ω<sup>-</sup>K)/Γ<sub>total</sub></th><th>Γ<sub>3</sub>/Γ</th></tr></thead><tbody><tr><td>VALUE</td><td></td></tr><tr><td>0.09 ± 0.04</td><td></td></tr></tbody></table>

<table><thead><tr><th>[Γ(ΛK̄*(892)) + Γ(ΣK̄*(892))]/Γ<sub>total</sub></th><th>(Γ<sub>4</sub>+Γ<sub>5</sub>)/Γ</th></tr></thead><tbody><tr><td>VALUE</td><td></td></tr><tr><td>0.22 ± 0.13</td><td></td></tr></tbody></table>

<table><thead><tr><th>Γ(Σ(1385)K̄)/Γ<sub>total</sub></th><th>Γ<sub>6</sub>/Γ</th></tr></thead><tbody><tr><td>VALUE</td><td></td></tr><tr><td>0.12 ± 0.08</td><td></td></tr></tbody></table>

Ξ(2370) FOOTNOTES

¹ KINSON 80 is a reanalysis of AMIRZADEH 80 with 50% more events.

Ξ(2370) REFERENCES

<table><tr><td>JENKINS</td><td>83</td><td>PRL 51 951</td></tr><tr><td>HASSALL</td><td>81</td><td>NP B189 397</td></tr><tr><td>AMIRZADEH</td><td>80</td><td>PL 90B 324</td></tr><tr><td>KINSON</td><td>80</td><td>Toronto Conf. 263</td></tr><tr><td>DIBIANCA</td><td>75</td><td>NP B98 137</td></tr></table>

<table><tr><td>C.M. Jenkins et al.</td><td>(FSU, BRAN, LBL+)</td></tr><tr><td>J.K. Hassall et al.</td><td>(CAVE, MSU)</td></tr><tr><td>J. Amirzadeh et al.</td><td>(BIRM, CERN, GLAS+) I</td></tr><tr><td>J.B. Kinson et al.</td><td>(BIRM, CERN, GLAS+) I</td></tr><tr><td>F.A. Dibianca, R.J. Endorf</td><td>(CMU)</td></tr></table>

$Ξ(2500)$

$I(J^P) = \frac{1}{2}(?^2)$ Status: *
J, P need confirmation.

OMITTED FROM SUMMARY TABLE

The ALITTI 69 peak might be instead the Ξ(2370) or might be neither the Ξ(2370) nor the Ξ(2500).

Ξ(2500) MASS

<table><thead><tr><th>VALUE (MeV)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>CHG</th><th>COMMENT</th></tr></thead><tbody><tr><td colspan="6"><strong>≈ 2500 OUR ESTIMATE</strong></td></tr><tr><td>2505 ± 10</td><td></td><td>JENKINS</td><td>83</td><td>MPS</td><td>K<sup>-</sup> p → K<sup>+</sup> MM</td></tr><tr><td>2430 ± 20</td><td>30</td><td>ALITTI</td><td>69</td><td>HBC</td><td>K<sup>-</sup> p 4.6-5 GeV/c</td></tr><tr><td>2500 ± 10</td><td>45</td><td>BARTSCH</td><td>69</td><td>HBC</td><td>K<sup>-</sup> p 10 GeV/c</td></tr></tbody></table>

Ξ(2500) WIDTH

<table><thead><tr><th>VALUE (MeV)</th><th></th><th>DOCUMENT ID</th><th>TECN</th><th>CHG</th></tr></thead><tbody><tr><td>150 ± 60</td><td></td><td>ALITTI</td><td>69</td><td>HBC</td></tr><tr><td>40</td><td></td><td></td><td></td><td></td></tr><tr><td>59 ± 27</td><td></td><td>BARTSCH</td><td>69</td><td>HBC</td></tr></tbody></table>

Ξ(2500) DECAY MODES

<table><thead><tr><th>Mode</th><th>Fraction (Γ<sub>i</sub>/Γ)</th></tr></thead><tbody><tr><td>Γ<sub>1</sub> Ξπ</td><td></td></tr><tr><td>Γ<sub>2</sub> ΛK̄</td><td></td></tr><tr><td>Γ<sub>3</sub> ΣK̄</td><td></td></tr><tr><td>Γ<sub>4</sub> Ξππ</td><td>seen</td></tr><tr><td>Γ<sub>5</sub> Ξ(1530)π</td><td></td></tr><tr><td>Γ<sub>6</sub> ΛK̄π + ΣK̄π</td><td>seen</td></tr></tbody></table>

Ξ(2500) BRANCHING RATIOS

<table><thead><tr><th>Γ(Ξπ)/[Γ(Ξπ) + Γ(ΛK̄) + Γ(ΣK̄) + Γ(Ξ(1530)π)]</th><th>Γ<sub>1</sub>/(Γ<sub>1</sub>+Γ<sub>2</sub>+Γ<sub>3</sub>+Γ<sub>5</sub>)</th></tr></thead><tbody><tr><td>VALUE</td><td></td></tr><tr><td>&lt;0.5</td><td></td></tr></tbody></table>

<table><thead><tr><th>Γ(ΛK̄)/[Γ(Ξπ) + Γ(ΛK̄) + Γ(ΣK̄) + Γ(Ξ(1530)π)]</th><th>Γ<sub>2</sub>/(Γ<sub>1</sub>+Γ<sub>2</sub>+Γ<sub>3</sub>+Γ<sub>5</sub>)</th></tr></thead><tbody><tr><td>VALUE</td><td></td></tr><tr><td>0.5 ± 0.2</td><td></td></tr></tbody></table>

<table><thead><tr><th>Γ(ΣK̄)/[Γ(Ξπ) + Γ(ΛK̄) + Γ(ΣK̄) + Γ(Ξ(1530)π)]</th><th>Γ<sub>3</sub>/(Γ<sub>1</sub>+Γ<sub>2</sub>+Γ<sub>3</sub>+Γ<sub>5</sub>)</th></tr></thead><tbody><tr><td>VALUE</td><td></td></tr><tr><td>0.5 ± 0.2</td><td></td></tr></tbody></table>

<table><thead><tr><th>Γ(Ξ(1530)π)/[Γ(Ξπ) + Γ(ΛK̄) + Γ(ΣK̄) + Γ(Ξ(1530)π)]</th><th>Γ<sub>5</sub>/(Γ<sub>1</sub>+Γ<sub>2</sub>+Γ<sub>3</sub>+Γ<sub>5</sub>)</th></tr></thead><tbody><tr><td>VALUE</td><td></td></tr><tr><td>&lt;0.2</td><td></td></tr></tbody></table>

<table><thead><tr><th>Γ(Ξππ)/Γ<sub>total</sub></th><th>Γ<sub>4</sub>/Γ</th></tr></thead><tbody><tr><td>VALUE</td><td></td></tr><tr><td>seen</td><td></td></tr></tbody></table>

<table><thead><tr><th>[Γ(ΛK̄π) + Γ(ΣK̄π)]/Γ<sub>total</sub></th><th>Γ<sub>6</sub>/Γ</th></tr></thead><tbody><tr><td>VALUE</td><td></td></tr><tr><td>seen</td><td></td></tr></tbody></table>

Ξ(2500) REFERENCES

<table><tr><td>JENKINS</td><td>83</td><td>PRL 51 951</td></tr><tr><td>ALITTI</td><td>69</td><td>PRL 22 79</td></tr><tr><td>BARTSCH</td><td>69</td><td>PL 28B 439</td></tr></table>

<table><tr><td>C.M. Jenkins et al.</td><td>(FSU, BRAN, LBL+)</td></tr><tr><td>J. Alitti et al.</td><td>(BNL, SYRA) I</td></tr><tr><td>J. Bartsch et al.</td><td>(AACH, BÉRL, CERN+)</td></tr></table>
# Ω BARYONS

$(S = -3, I = 0)$

$\Omega^{-} = sss$

$\Omega^-$

$I(J^P) = 0(\frac{3}{2}^+)$ Status: ****

The unambiguous discovery in both production and decay was by BARNES 64. The quantum numbers follow from the assignment of the particle to the baryon decuplet. DEUTSCHMANN 78 and BAUBILLIER 78 rule out $J = 1/2$ and find consistency with $J = 3/2$. AUBERT,BE 06 finds from the decay angular distributions of $\Xi_0^0 \to \Omega^- K^+$ and $\Omega_0^0 \to \Omega^- K^+$ that $J = 3/2$; this depends on the spins of the $\Xi_0^0$ and $\Omega_0^0$ being $J = 1/2$, their supposed values. ABLIKIM 21E determines the $\Omega^-$ spin to be $J = 3/2$ from the decay angular distributions of the complete decay chain $\psi(3686) \to \Omega^- \bar{\Omega}^+$, with subsequent decays $\Omega^- \to K^- \Lambda$ and $\bar{\Omega}^+ \to K^+ \bar{\Lambda}$.

We have omitted some results that have been superseded by later experiments. See our earlier editions.

## Ω⁻ MASS

The fit assumes the $\Omega^-$ and $\bar{\Omega}^+$ masses are the same, and averages them together.

<table><thead><tr><th>VALUE (MeV)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td colspan="5"><strong>1672.45 ±0.29 OUR FIT</strong></td></tr><tr><td colspan="5"><strong>1672.43 ±0.32 OUR AVERAGE</strong></td></tr><tr><td>1673 ±1</td><td>100</td><td>HARTOUNI</td><td>85</td><td>SPEC 80-280 GeV $K_L^0 C$</td></tr><tr><td>1673.0 ±0.8</td><td>41</td><td>BAUBILLIER</td><td>78</td><td>HBC 8.25 GeV/c $K^- p$</td></tr><tr><td>1671.7 ±0.6</td><td>27</td><td>HEMINGWAY</td><td>78</td><td>HBC 4.2 GeV/c $K^- p$</td></tr><tr><td>1673.4 ±1.7</td><td>4</td><td>1 DIBIANCA</td><td>75</td><td>DBC 4.9 GeV/c $K^- d$</td></tr><tr><td>1673.3 ±1.0</td><td>3</td><td>PALMER</td><td>68</td><td>HBC $K^- p$ 4.6, 5 GeV/c</td></tr><tr><td>1671.8 ±0.8</td><td>3</td><td>SCHULTZ</td><td>68</td><td>HBC $K^- p$ 5.5 GeV/c</td></tr><tr><td>1674.2 ±1.6</td><td>5</td><td>SCOTTER</td><td>68</td><td>HBC $K^- p$ 6 GeV/c</td></tr><tr><td>1672.1 ±1.0</td><td>1</td><td>2 FRY</td><td>55</td><td>EMUL</td></tr><tr><td colspan="5">• • • We do not use the following data for averages, fits, limits, etc. • • •</td></tr><tr><td>1671.43 ±0.78</td><td>13</td><td>3 DEUTSCH...</td><td>73</td><td>HBC $K^- p$ 10 GeV/c</td></tr><tr><td>1671.9 ±1.2</td><td>6</td><td>3 SPETH</td><td>69</td><td>HBC See DEUTSCHMANN 73</td></tr><tr><td>1673.0 ±0.8</td><td>1</td><td>ABRAMS</td><td>64</td><td>HBC $\to \Xi^- \pi^0$</td></tr><tr><td>1670.6 ±1.0</td><td>1</td><td>2 FRY</td><td>55B</td><td>EMUL</td></tr><tr><td>1615</td><td>1</td><td>4 EISENBERG</td><td>54</td><td>EMUL</td></tr></tbody></table>

¹DIBIANCA 75 gives a mass for each event. We quote the average.

²The FRY 55 and FRY 55b events were identified as $\Omega^-$ by ALVAREZ 73. The masses assume decay to $\Lambda K^-$ at rest. For FRY 55b, decay from an atomic orbit could Doppler shift the $K^-$ energy and the resulting $\Omega^-$ mass by several MeV. This shift is negligible for FRY 55 because the $\Omega$ decay is approximately perpendicular to its orbital velocity, as is known because the $\Lambda$ strikes the nucleus (L.Alvarez, private communication 1973). We have calculated the error assuming that the orbital n is 4 or larger.

³Excluded from the average; the $\Omega^-$ lifetimes measured by the experiments differ significantly from other measurements.

⁴The EISENBERG 54 mass was calculated for decay in flight. ALVAREZ 73 has shown that the $\Omega$ interacted with an Ag nucleus to give $K^- \Xi \text{Ag}$.

## $\bar{\Omega}^+$ MASS

The fit assumes the $\Omega^-$ and $\bar{\Omega}^+$ masses are the same, and averages them together.

<table><thead><tr><th>VALUE (MeV)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td colspan="5"><strong>1672.45 ±0.29 OUR FIT</strong></td></tr><tr><td colspan="5"><strong>1672.5 ±0.7 OUR AVERAGE</strong></td></tr><tr><td>1672 ±1</td><td>72</td><td>HARTOUNI</td><td>85</td><td>SPEC 80-280 GeV $K_L^0 C$</td></tr><tr><td>1673.1 ±1.0</td><td>1</td><td>FIRESTONE</td><td>71B</td><td>HBC 12 GeV/c $K^+ d$</td></tr></tbody></table>

## $(m_{\Omega^-} - m_{\bar{\Omega}^+}) / m_{\bar{\Omega}^-}$

A test of CPT invariance.

<table><thead><tr><th>VALUE (units 10<sup>-5</sup>)</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>-1.44 ±7.98</td><td>CHAN</td><td>98</td><td>p Be, 800 GeV</td></tr></tbody></table>

## Ω⁻ MEAN LIFE

Measurements with an error > $0.1 \times 10^{-10}$ s have been omitted. The fit assumes the $\Omega^-$ and $\bar{\Omega}^+$ mean lives are the same, and averages them together.

<table><thead><tr><th>VALUE (10<sup>-10</sup> s)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td colspan="5"><strong>0.821 ±0.011 OUR FIT</strong></td></tr><tr><td colspan="5"><strong>0.821 ±0.011 OUR AVERAGE</strong></td></tr><tr><td>0.817 ±0.013 ±0.018</td><td>6934</td><td>CHAN</td><td>98</td><td>E756 p Be, 800 GeV</td></tr><tr><td>0.811 ±0.037</td><td>1096</td><td>LUK</td><td>88</td><td>SPEC p Be 400 GeV</td></tr><tr><td>0.823 ±0.013</td><td>12k</td><td>BOURQUIN</td><td>84</td><td>SPEC SPS hyperon beam</td></tr><tr><td colspan="5">• • • We do not use the following data for averages, fits, limits, etc. • • •</td></tr><tr><td>0.822 ±0.028</td><td>2437</td><td>BOURQUIN</td><td>79B</td><td>SPEC See BOURQUIN 84</td></tr></tbody></table>

## $\bar{\Omega}^+$ MEAN LIFE

The fit assumes the $\Omega^-$ and $\bar{\Omega}^+$ mean lives are the same, and averages them together.

<table><thead><tr><th>VALUE (10<sup>-10</sup> s)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td colspan="5"><strong>0.821 ±0.011 OUR FIT</strong></td></tr><tr><td colspan="5"><strong>0.823 ±0.031 ±0.022</strong></td></tr><tr><td></td><td>1801</td><td>CHAN</td><td>98</td><td>E756 p Be, 800 GeV</td></tr></tbody></table>

## $(\tau_{\Omega^-} - \tau_{\bar{\Omega}^+}) / \tau_{\Omega^-}$

A test of CPT invariance. Our calculation, from the averages in the preceding two data blocks.

<table><thead><tr><th>VALUE</th><th>DOCUMENT ID</th></tr></thead><tbody><tr><td>0.00 ±0.05 OUR ESTIMATE</td><td></td></tr></tbody></table>

## Ω⁻ MAGNETIC MOMENT

<table><thead><tr><th>VALUE (μN)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td colspan="5"><strong>-2.02 ±0.05 OUR AVERAGE</strong></td></tr><tr><td>-2.024 ±0.056</td><td>235k</td><td>WALLACE</td><td>95</td><td>SPEC $\Omega^- 300-550$ GeV</td></tr><tr><td>-1.94 ±0.17 ±0.14</td><td>25k</td><td>DIEHL</td><td>91</td><td>SPEC Spin-transfer production</td></tr></tbody></table>

## Ω⁻ DECAY MODES

<table><thead><tr><th>Mode</th><th>Fraction (Γ<sub>f</sub>/Γ)</th><th>Scale factor/<br>Confidence level</th></tr></thead><tbody><tr><td>Γ<sub>1</sub> Λ K<sup>-</sup></td><td>(67.7 ±0.7) %</td><td></td></tr><tr><td>Γ<sub>2</sub> Ξ<sup>0</sup> π<sup>-</sup></td><td>(24.3 ±0.7) %</td><td>S=1.5</td></tr><tr><td>Γ<sub>3</sub> Ξ<sup>-</sup> π<sup>0</sup></td><td>(8.55 ±0.33) %</td><td></td></tr><tr><td>Γ<sub>4</sub> Ξ<sup>-</sup> π<sup>+</sup> π<sup>-</sup></td><td>(3.7 <sup>+0.7</sup><sub>-0.6</sub>) × 10<sup>-4</sup></td><td></td></tr><tr><td>Γ<sub>5</sub> Ξ<sup>0</sup> (1530)<sup>0</sup> π<sup>-</sup></td><td>&lt; 7 × 10<sup>-5</sup></td><td>CL=90%</td></tr><tr><td>Γ<sub>6</sub> Ξ<sup>0</sup> e<sup>-</sup> ν<sub>e</sub></td><td>(5.6 ±2.8) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>7</sub> Ξ<sup>-</sup> γ</td><td>&lt; 4.6 × 10<sup>-4</sup></td><td>CL=90%</td></tr></tbody></table>

## ΔS = 2 forbidden (S2) modes

<table><thead><tr><th>Γ<sub>8</sub> Λ π<sup>-</sup></th><th>S2</th><th>&lt; 2.9 × 10<sup>-6</sup></th><th>CL=90%</th></tr></thead></table>

## Ω⁻ BRANCHING RATIOS

The BOURQUIN 84 values (which include results of BOURQUIN 79B, a separate experiment) are much more accurate than any other results, and so the other results have been omitted.

<table><thead><tr><th>Γ(ΛK<sup>-</sup>)/Γ<sub>total</sub></th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td colspan="5"><strong>67.7 ±0.7 OUR AVERAGE</strong></td></tr><tr><td>66.3 ±0.8 ±2.0</td><td>9.0k</td><td>ABLIKIM</td><td>23B J BES3</td><td>e<sup>+</sup> e<sup>-</sup> → ψ(3686) → Ω<sub>L</sub> Ω<sub>L</sub></td></tr><tr><td>67.8 ±0.7</td><td>14k</td><td>BOURQUIN</td><td>84</td><td>SPEC SPS hyperon beam</td></tr><tr><td colspan="5">• • • We do not use the following data for averages, fits, limits, etc. • • •</td></tr><tr><td>68.6 ±1.3</td><td>1920</td><td>BOURQUIN</td><td>79B</td><td>SPEC See BOURQUIN 84</td></tr></tbody></table>

<table><thead><tr><th>Γ(Ξ<sup>0</sup> π<sup>-</sup>)/Γ<sub>total</sub></th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td colspan="5"><strong>24.3 ±0.7 OUR AVERAGE</strong></td></tr><tr><td>25.03 ±0.44 ±0.53</td><td>5.4k</td><td>ABLIKIM</td><td>23B J BES3</td><td>e<sup>+</sup> e<sup>-</sup> → ψ(3686) → Ω<sub>L</sub> Ω<sub>L</sub></td></tr><tr><td>23.6 ±0.7</td><td>1947</td><td>BOURQUIN</td><td>84</td><td>SPEC SPS hyperon beam</td></tr><tr><td colspan="5">• • • We do not use the following data for averages, fits, limits, etc. • • •</td></tr><tr><td>23.4 ±1.3</td><td>317</td><td>BOURQUIN</td><td>79B</td><td>SPEC See BOURQUIN 84</td></tr></tbody></table>

<table><thead><tr><th>Γ(Ξ<sup>-</sup> π<sup>0</sup>)/Γ<sub>total</sub></th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td colspan="5"><strong>8.55 ±0.33 OUR AVERAGE</strong></td></tr><tr><td>8.43 ±0.52 ±0.28</td><td>794</td><td>ABLIKIM</td><td>23B J BES3</td><td>e<sup>+</sup> e<sup>-</sup> → ψ(3686) → Ω<sub>L</sub> Ω<sub>L</sub></td></tr><tr><td>8.6 ±0.4</td><td>759</td><td>BOURQUIN</td><td>84</td><td>SPEC SPS hyperon beam</td></tr><tr><td colspan="5">• • • We do not use the following data for averages, fits, limits, etc. • • •</td></tr><tr><td>8.0 ±0.8</td><td>145</td><td>BOURQUIN</td><td>79B</td><td>SPEC See BOURQUIN 84</td></tr></tbody></table>
$\Gamma(\Xi^-\pi^+\pi^-)/\Gamma_{\text{total}} \qquad \Gamma_4/\Gamma$

<table><thead><tr><th>VALUE (units 10<sup>-4</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>3.74<sup>+0.67</sup><sub>-0.56</sub></td><td>100</td><td>5 KAMAEV</td><td>10</td><td>HYCP p Cu, 800 GeV</td></tr></tbody></table>

• • • We do not use the following data for averages, fits, limits, etc. • • •

<table><thead><tr><th>4.3<sup>+3.4</sup><sub>-1.3</sub></th><th>4</th><th>BOURQUIN</th><th>84</th><th>SPEC</th><th>SPS hyperon beam</th></tr></thead><tbody></tbody></table>

5 This KAMAEV 10 value uses 76 $\Omega^-$ → $\Xi^-\pi^+\pi^-$ and 24 $\bar{\Omega}^+$ → $\Xi^+\pi^-\pi^+$ decays. The $\Omega^-$ and $\bar{\Omega}^+$ branching fractions measurements are statistically equal. The errors given combine statistical and systematic contributions. The CP branching-fraction asymmetry, $(\Omega^- - \bar{\Omega}^+)/\text{sum}$, is +0.12 ± 0.20.

$\Gamma(\Xi(1530)^0\pi^-)/\Gamma_{\text{total}} \qquad \Gamma_5/\Gamma$

<table><thead><tr><th>VALUE (units 10<sup>-4</sup>)</th><th>CL%</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><strong>&lt;0.7</strong></td><td>90</td><td></td><td>KAMAEV</td><td>10</td><td>HYCP p Cu, 800 GeV</td></tr></tbody></table>

• • • We do not use the following data for averages, fits, limits, etc. • • •

<table><thead><tr><th>6.4<sup>+5.1</sup><sub>-2.0</sub></th><th>4</th><th>6 BOURQUIN</th><th>84</th><th>SPEC</th><th>SPS hyperon beam</th></tr></thead><tbody></tbody></table>

6 The same 4 events as in the previous mode, with the isospin factor to take into account $\Xi(1530)^0 \to \Xi^0\pi^0$ decays included. BOURQUIN 84 adopted a theoretical assumption that $\Xi(1530)^0\pi^-$ would dominate $\Xi^-\pi^+\pi^-$ decay.

$\Gamma(\Xi^0 e^-\bar{\nu}_e)/\Gamma_{\text{total}} \qquad \Gamma_6/\Gamma$

<table><thead><tr><th>VALUE (units 10<sup>-3</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><strong>5.6±2.8</strong></td><td>14</td><td></td><td>BOURQUIN</td><td>84</td><td>SPEC SPS hyperon beam</td></tr></tbody></table>

• • • We do not use the following data for averages, fits, limits, etc. • • •

<table><thead><tr><th>~ 10</th><th>3</th><th>BOURQUIN</th><th>79B</th><th>SPEC</th><th>See BOURQUIN 84</th></tr></thead><tbody></tbody></table>

$\Gamma(\Xi^-\gamma)/\Gamma_{\text{total}} \qquad \Gamma_7/\Gamma$

<table><thead><tr><th>VALUE (units 10<sup>-4</sup>)</th><th>CL%</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><strong>&lt; 4.6</strong></td><td>90</td><td>0</td><td>ALBUQUERQU...94</td><td>E761</td><td>$\Omega^-$ 375 GeV</td></tr></tbody></table>

• • • We do not use the following data for averages, fits, limits, etc. • • •

<table><thead><tr><th>&lt;22</th><th>90</th><th>9</th><th>BOURQUIN</th><th>84</th><th>SPEC</th><th>SPS hyperon beam</th></tr></thead><tbody><tr><th>&lt;31</th><th>90</th><th>0</th><th>BOURQUIN</th><th>79B</th><th>SPEC</th><th>See BOURQUIN 84</th></tr></tbody></table>

$\Gamma(\Lambda\pi^-)/\Gamma_{\text{total}} \qquad \Gamma_8/\Gamma$

<table><thead><tr><th>ΔS=2. Forbidden in first-order weak interaction.</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><strong>&lt; 2.9</strong></td><td>90</td><td>WHITE</td><td>05</td><td>HYCP p Cu, 800 GeV</td></tr></tbody></table>

• • • We do not use the following data for averages, fits, limits, etc. • • •

<table><thead><tr><th>&lt; 190</th><th>90</th><th>BOURQUIN</th><th>84</th><th>SPEC</th><th>SPS hyperon beam</th></tr></thead><tbody><tr><th>&lt;1300</th><th>90</th><th>BOURQUIN</th><th>79B</th><th>SPEC</th><th>See BOURQUIN 84</th></tr></tbody></table>

## $\Omega^-$ DECAY PARAMETERS

$\alpha(\Omega^-) \alpha_-(\Lambda) \text{ FOR } \Omega^- \to \Lambda K^-$

Some early results have been omitted.

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><strong>0.0115±0.0015</strong> OUR AVERAGE</td><td></td><td></td><td></td><td></td></tr><tr><td>0.0133±0.0033±0.0052</td><td>960k</td><td>7 CHEN</td><td>05</td><td>HYCP p Cu, 800 GeV</td></tr><tr><td>0.0114±0.0012±0.0010</td><td>4.5M</td><td>7 LU</td><td>05A</td><td>HYCP p Cu, 800 GeV</td></tr></tbody></table>

• • • We do not use the following data for averages, fits, limits, etc. • • •

<table><thead><tr><th>-0.018 ± 0.030</th><th>6953</th><th>CHAN</th><th>98</th><th>E756 p Be, 800 GeV</th></tr></thead><tbody><tr><th>-0.022 ± 0.051</th><th>1743</th><th>LUK</th><th>88</th><th>SPEC p Be 400 GeV</th></tr><tr><th>-0.016 ± 0.018</th><th>12k</th><th>BOURQUIN</th><th>84</th><th>SPEC SPS hyperon beam</th></tr></tbody></table>

7 The results of CHEN 05 and LU 05A are from different experimental runs.

$\alpha \text{ FOR } \Omega^- \to \Lambda K^-$

The above average, $\alpha(\Omega^-)\alpha_-(\Lambda) = 0.0115 \pm 0.0015$, divided by our current average

$\alpha_-(\Lambda) = 0.747 \pm 0.009$ gives $\alpha(\Omega^-)$:

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th></tr></thead><tbody><tr><td><strong>0.0154±0.0020</strong> OUR EVALUATION</td><td></td><td></td></tr></tbody></table>

<table><thead><tr><th>ᾱ FOR Ω̄ + → ΛK<sup>+</sup></th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><strong>-0.0181±0.0028±0.0026</strong></td><td>1.89M</td><td>LU</td><td>06</td><td>HYCP p Cu, 800 GeV</td></tr></tbody></table>

• • • We do not use the following data for averages, fits, limits, etc. • • •

<table><thead><tr><th>+0.017 ± 0.077</th><th>1823</th><th>CHAN</th><th>98</th><th>E756 p Be, 800 GeV</th></tr></thead><tbody></tbody></table>

$(\alpha + \bar{\alpha})/(\alpha - \bar{\alpha}) \text{ in } \Omega^- \to \Lambda K^-, \bar{\Omega}^+ \to \bar{\Lambda} K^+$

Zero if CP is conserved.

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><strong>-0.016±0.092±0.089</strong></td><td>8 LU</td><td>06</td><td>HYCP p Cu, 800 GeV</td></tr></tbody></table>

8 This value uses the results of CHEN 05, LU 05A, and LU 06.

<table><thead><tr><th>α FOR Ω<sup>-</sup> → Ξ<sup>0</sup>π<sup>-</sup></th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><strong>+0.09±0.14</strong></td><td>1630</td><td></td><td></td><td></td></tr></tbody></table>

<table><thead><tr><th>α FOR Ω<sup>-</sup> → Ξ<sup>-</sup>π<sup>0</sup></th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><strong>+0.05±0.21</strong></td><td>614</td><td></td><td></td><td></td></tr></tbody></table>

## $\Omega^-$ REFERENCES

We have omitted some papers that have been superseded by later experiments. See our earlier editions.

<table><tbody><tr><td>ABLIKIM</td><td>23BJ</td><td>PR D108 L091101</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>21E</td><td>PRL 126 092002</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>KAMAEV</td><td>10</td><td>PL B693 236</td><td>O. Kamaev et al.</td><td>(FNAL HyperCP Collab.)</td></tr><tr><td>AUBERT,BE</td><td>06</td><td>PL 97 112001</td><td>B. Aubert et al.</td><td>(BABAR Collab.)</td></tr><tr><td>LU</td><td>06</td><td>PRL 96 242001</td><td>L.C. Lu et al.</td><td>(FNAL HyperCP Collab.)</td></tr><tr><td>CHEN</td><td>05</td><td>PR D71 051102</td><td>Y.C. Chen et al.</td><td>(FNAL HyperCP Collab.)</td></tr><tr><td>LU</td><td>05A</td><td>PL B617 11</td><td>L.C. Lu et al.</td><td>(FNAL HyperCP Collab.)</td></tr><tr><td>WHITE</td><td>05</td><td>PRL 94 101804</td><td>C.G. White et al.</td><td>(FNAL HyperCP Collab.)</td></tr><tr><td>CHAN</td><td>98</td><td>PR D58 072002</td><td>A.W. Chan et al.</td><td>(FNAL E756 Collab.)</td></tr><tr><td>WALLACE</td><td>95</td><td>PRL 74 3732</td><td>N.B. Wallace et al.</td><td>(MINN, ARIZ, MICH+)</td></tr><tr><td>ALBUQUERQU...</td><td>94</td><td>PRL D50 18</td><td>I.F. Albuquerque et al.</td><td>(FNAL E761 Collab.)</td></tr><tr><td>DIEHL</td><td>91</td><td>PRL 80 804</td><td>H.T. Diehl et al.</td><td>(RUTG, FNAL, MICH+)</td></tr><tr><td>LUK</td><td>88</td><td>PR D38 19</td><td>K.B. Luk et al.</td><td>(RUTG, WISC, MICH, MINN)</td></tr><tr><td>HARTOUNI</td><td>85</td><td>PRL 54 628</td><td>E.P. Hartouni et al.</td><td>(COLU, ILL, FNAL)</td></tr><tr><td>BOURQUIN</td><td>84</td><td>NP B241 1</td><td>M.H. Bourquin et al.</td><td>(BRIS, GEVA, HEIDP+)</td></tr><tr><td>Also</td><td>79B</td><td>PL 87B 297</td><td>M.H. Bourquin et al.</td><td>(BRIS, GEVA, HEIDP+)</td></tr><tr><td>BOURQUIN</td><td>79B</td><td>PL 88B 192</td><td>M.H. Bourquin et al.</td><td>(BRIS, GEVA, HEIDP+)</td></tr><tr><td>BAUBILLIER</td><td>78</td><td>PL 78B 342</td><td>M. Baubillier et al.</td><td>(BIRM, CERN, GLAS+)</td></tr><tr><td>DEUTSCH...</td><td>78</td><td>PL 73B 96</td><td>M. Deutschmann et al.</td><td>(AACH, BERL, CERN+)</td></tr><tr><td>HEMINGWAY</td><td>78</td><td>NP B142 205</td><td>R.J. Hemingway et al.</td><td>(CERN, ZEEM, NJUM+)</td></tr><tr><td>DIBIANCA</td><td>75</td><td>NP B98 137</td><td>F.A. Dibianca, R.J. Endorf</td><td>(CMU)</td></tr><tr><td>ALVAREZ</td><td>73</td><td>PR D8 702</td><td>L.W. Alvarez</td><td>(LBL)</td></tr><tr><td>DEUTSCH...</td><td>73</td><td>NP B61 102</td><td>M. Deutschmann et al.</td><td>(ABCLV Collab.)</td></tr><tr><td>FIRESTONE</td><td>71B</td><td>PRL 26 410</td><td>I. Firestone et al.</td><td>(LRL)</td></tr><tr><td>SPETH</td><td>69</td><td>PL 29B 252</td><td>R. Speth et al.</td><td>(AACH, BERL, CERN, LOIC+)</td></tr><tr><td>PALMER</td><td>68</td><td>PL 26B 323</td><td>R.B. Palmer et al.</td><td>(BNL, SYRA)</td></tr><tr><td>SCHULTZ</td><td>68</td><td>PR 168 1509</td><td>P.F. Schultz et al.</td><td>(ILL, ANL, NWES+)</td></tr><tr><td>SCOUTTER</td><td>68</td><td>PL 26B 474</td><td>D. Scotter et al.</td><td>(BIRM, GLAS, LOIC+)</td></tr><tr><td>ABRAMS</td><td>64</td><td>PRL 13 670</td><td>G.S. Abrams et al.</td><td>(UMD, NRL)</td></tr><tr><td>BARNES</td><td>64</td><td>PRL 12 204</td><td>V.E. Barnes et al.</td><td>(BNL)</td></tr><tr><td>FRY</td><td>55</td><td>PR 97 1189</td><td>W.F. Fry, J. Schneps, M.S. Swami</td><td>(WISC)</td></tr><tr><td>FRY</td><td>55B</td><td>NC 2 346</td><td>W.F. Fry, J. Schneps, M.S. Swami</td><td>(WISC)</td></tr><tr><td>EISENBERG</td><td>54</td><td>PR 96 541</td><td>Y. Eisenberg</td><td>(CORN)</td></tr></tbody></table>

$\Omega(2012)^-$

$I(J^P) = 0(\not\!\gamma)$ Status: ***

Seen in $\Xi^0 K^-$ and $\Xi^- K_5^0$ decays with a combined significance of 8.3 standard deviations.

$\Omega(2012)^- \text{ MASS}$

<table><thead><tr><th>VALUE (MeV)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><strong>2012.4±0.7±0.6</strong></td><td>520</td><td></td><td></td><td></td></tr></tbody></table>

$\Omega(2012)^- \text{ WIDTH}$

<table><thead><tr><th>VALUE (MeV)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><strong>6.4+2.5<br>-2.0±1.6</strong></td><td>520</td><td></td><td></td><td></td></tr></tbody></table>

$\Omega(2012)^- \text{ DECAY MODES}$

Branching fractions are given relative to the one **DEFINED AS 1**.

<table><thead><tr><th>Mode</th><th>Fraction (Γ<sub>f</sub>/Γ)</th><th>Confidence level</th></tr></thead><tbody><tr><td>Γ<sub>1</sub> ΞK</td><td></td><td></td></tr><tr><td>Γ<sub>2</sub> (ΞπK)</td><td></td><td></td></tr><tr><td>Γ<sub>3</sub> Ξ<sup>0</sup>K<sup>-</sup></td><td colspan="2" style="text-align: center;">DEFINED AS 1</td></tr><tr><td>Γ<sub>4</sub> Ξ<sup>-</sup>K<sup>0</sup></td><td>0.83±0.21</td><td></td></tr><tr><td>Γ<sub>5</sub> Ξ<sup>0</sup>π<sup>0</sup>K<sup>-</sup></td><td>&lt;0.30</td><td>90%</td></tr><tr><td>Γ<sub>6</sub> Ξ<sup>0</sup>π<sup>-</sup>K<sup>0</sup></td><td>&lt;0.21</td><td>90%</td></tr><tr><td>Γ<sub>7</sub> Ξ<sup>-</sup>π<sup>0</sup>K<sup>0</sup></td><td>&lt;0.7</td><td>90%</td></tr><tr><td>Γ<sub>8</sub> Ξ<sup>-</sup>π<sup>+</sup>K<sup>-</sup></td><td>&lt;0.08</td><td>90%</td></tr></tbody></table>

$\Omega(2012)^- \text{ BRANCHING RATIOS}$

<table><thead><tr><th>Γ(ΞπK)/Γ(ΞK)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><strong>&lt;0.119</strong></td><td>90</td><td></td><td></td><td></td></tr></tbody></table>

<table><thead><tr><th>Γ(Ξ<sup>0</sup>K<sup>-</sup>)/Γ(Ξ<sup>-</sup>K<sup>0</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><strong>1.2±0.3</strong></td><td></td><td></td><td></td><td></td></tr></tbody></table>

<table><thead><tr><th>Γ(Ξ<sup>0</sup>π<sup>0</sup>K<sup>-</sup>)/Γ(Ξ<sup>-</sup>0 K<sup>-</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><strong>&lt;0.304</strong></td><td>90</td><td></td><td></td><td></td></tr></tbody></table>

<table><thead><tr><th>Γ(Ξ<sup>0</sup>π<sup>-</sup>K<sup>0</sup>)/Γ(Ξ<sup>-</sup>0 K<sup>-</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><strong>&lt;0.213</strong></td><td>90</td><td></td><td></td><td></td></tr></tbody></table>

<table><thead><tr><th>Γ(Ξ<sup>0</sup>π<sup>-</sup>K<sup>0</sup>)/Γ(Ξ<sup>-</sup>0 K<sup>-</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><strong>&lt;0.256</strong></td><td>90</td><td></td><td></td><td></td></tr></tbody></table>

<table><thead><tr><th>Γ(Ξ<sup>0</sup>π<sup>-</sup>K<sup>0</sup>)/Γ(Ξ<sup>-</sup>0 K<sup>-</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><strong>&lt;0.256</strong></td><td>90</td><td></td><td></td><td></td></tr></tbody></table>
$$ \Omega(2380)^- $$

Status: **

OMITTED FROM SUMMARY TABLE

<table><thead><tr><th colspan="2">Γ(Ξ⁻π⁰K⁰)/Γ(Ξ⁻K⁰)</th><th colspan="3">Γ<sub>7</sub>/Γ<sub>4</sub></th></tr><tr><th>VALUE</th><th>CL%</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><b>&lt;0.811</b></td><td>90</td><td>JIA</td><td>19</td><td>BELL In T(1S, 2S, 3S)</td></tr></tbody></table>

### Ω(2380)⁻ MASS

<table><thead><tr><th colspan="2">Γ(Ξ⁻π⁺K⁻)/Γ(Ξ⁰K⁻)</th><th colspan="3">Γ<sub>8</sub>/Γ<sub>3</sub></th></tr><tr><th>VALUE</th><th>CL%</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><b>&lt;0.078</b></td><td>90</td><td>JIA</td><td>19</td><td>BELL In T(1S, 2S, 3S)</td></tr></tbody></table>

<table><thead><tr><th>VALUE (MeV)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>≈ 2380 OUR ESTIMATE</td><td></td><td></td><td></td><td></td></tr><tr><td>2384 ± 9 ± 8</td><td>45</td><td>BIAGI</td><td>86B</td><td>SPEC SPS Ξ⁻ beam</td></tr></tbody></table>

<table><thead><tr><th colspan="2">Γ(Ξ⁻π⁺K⁻)/Γ(Ξ⁻K⁰)</th><th colspan="3">Γ<sub>8</sub>/Γ<sub>4</sub></th></tr><tr><th>VALUE</th><th>CL%</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><b>&lt;0.093</b></td><td>90</td><td>JIA</td><td>19</td><td>BELL In T(1S, 2S, 3S)</td></tr></tbody></table>

### Ω(2380)⁻ WIDTH

<table><thead><tr><th>VALUE (MeV)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>26 ± 23</td><td>45</td><td>BIAGI</td><td>86B</td><td>SPEC SPS Ξ⁻ beam</td></tr></tbody></table>

### Ω(2012)⁻ REFERENCES

<table><tr><td>JIA</td><td>19</td><td>PR D100 032006</td><td>S. Jia et al.</td><td>(BELLE Collab.)</td></tr><tr><td>YELTON</td><td>18A</td><td>PRL 121 052003</td><td>J. Yelton et al.</td><td>(BELLE Collab.)</td></tr></table>

### Ω(2380)⁻ DECAY MODES

<table><thead><tr><th>Mode</th><th>Fraction (Γ<sub>j</sub>/Γ)</th></tr></thead><tbody><tr><td>Γ<sub>1</sub> Ξ⁻π⁺K⁻</td><td></td></tr><tr><td>Γ<sub>2</sub> Ξ(1530)⁰K⁻</td><td>seen</td></tr><tr><td>Γ<sub>3</sub> Ξ⁻K* (892)⁰</td><td></td></tr></tbody></table>

$$ \Omega(2250)^- $$

$I(J^P) = 0(??)$ Status: ***

### Ω(2380)⁻ BRANCHING RATIOS

### Ω(2250)⁻ MASS

<table><thead><tr><th>VALUE (MeV)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><strong>2252 ± 9 OUR AVERAGE</strong></td><td></td><td></td><td></td><td></td></tr><tr><td>2253 ± 13</td><td>44</td><td>ASTON</td><td>87B</td><td>LASS K⁻ p 11 GeV/c</td></tr><tr><td>2251 ± 9 ± 8</td><td>78</td><td>BIAGI</td><td>86B</td><td>SPEC SPS Ξ⁻ beam</td></tr></tbody></table>

<table><thead><tr><th colspan="2">Γ(Ξ(1530)⁰K⁻)/Γ(Ξ⁻π⁺K⁻)</th><th colspan="3">Γ<sub>2</sub>/Γ<sub>1</sub></th></tr><tr><th>VALUE</th><th>CL%</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><b>&lt;0.44</b></td><td>90</td><td>9</td><td>BIAGI</td><td>86B</td><td>SPEC Ξ⁻ Be 116 GeV/c</td></tr></tbody></table>

<table><thead><tr><th colspan="2">Γ(Ξ⁻K* (892)⁰)/Γ(Ξ⁻π⁺K⁻)</th><th colspan="3">Γ<sub>3</sub>/Γ<sub>1</sub></th></tr><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.5 ± 0.3</td><td>21</td><td>BIAGI</td><td>86B</td><td>SPEC Ξ⁻ Be 116 GeV/c</td></tr></tbody></table>

### Ω(2250)⁻ WIDTH

<table><thead><tr><th>VALUE (MeV)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><strong>55 ± 18 OUR AVERAGE</strong></td><td></td><td></td><td></td><td></td></tr><tr><td>81 ± 38</td><td>44</td><td>ASTON</td><td>87B</td><td>LASS K⁻ p 11 GeV/c</td></tr><tr><td>48 ± 20</td><td>78</td><td>BIAGI</td><td>86B</td><td>SPEC SPS Ξ⁻ beam</td></tr></tbody></table>

### Ω(2380)⁻ REFERENCES

<table><tr><td>BIAGI</td><td>86B</td><td>ZPHY C31 33</td><td>S.F. Biagi et al.</td><td>(LOQM, GEVA, RAL+)</td></tr></table>

### Ω(2250)⁻ DECAY MODES

<table><thead><tr><th>Mode</th><th>Fraction (Γ<sub>j</sub>/Γ)</th></tr></thead><tbody><tr><td>Γ<sub>1</sub> Ξ⁻π⁺K⁻</td><td>seen</td></tr><tr><td>Γ<sub>2</sub> Ξ(1530)⁰K⁻</td><td>seen</td></tr></tbody></table>

$$ \Omega(2470)^- $$

Status: **

OMITTED FROM SUMMARY TABLE

A peak in the $\Omega^{-}\pi^{+}\pi^{-}$ mass spectrum with a signal significance claimed to be at least 5.5 standard deviations. There is no reason to seriously doubt the existence of this state, but unless the evidence is overwhelming we usually wait for confirmation from a second experiment before elevating peaks to the Summary Table.

### Ω(2250)⁻ BRANCHING RATIOS

<table><thead><tr><th colspan="2">Γ(Ξ(1530)⁰K⁻)/Γ(Ξ⁻π⁺K⁻)</th><th colspan="3">Γ<sub>2</sub>/Γ<sub>1</sub></th></tr><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>~ 1.0</td><td>44</td><td>ASTON</td><td>87B</td><td>LASS K⁻ p 11 GeV/c</td></tr><tr><td>0.70 ± 0.20</td><td>49</td><td>BIAGI</td><td>86B</td><td>SPEC Ξ⁻ Be 116 GeV/c</td></tr></tbody></table>

### Ω(2470)⁻ MASS

<table><thead><tr><th>VALUE (MeV)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><b>2474 ± 12</b></td><td>59</td><td>ASTON</td><td>88G</td><td>LASS K⁻ p 11 GeV/c</td></tr></tbody></table>

### Ω(2470)⁻ WIDTH

<table><thead><tr><th>VALUE (MeV)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td><b>72 ± 33</b></td><td>59</td><td>ASTON</td><td>88G</td><td>LASS K⁻ p 11 GeV/c</td></tr></tbody></table>

### Ω(2250)⁻ REFERENCES

<table><tr><td>ASTON</td><td>87B</td><td>PL B194 579</td><td>D. Aston et al.</td><td>(SLAC, NAGO, CINC, INUS)</td></tr><tr><td>BIAGI</td><td>86B</td><td>ZPHY C31 33</td><td>S.F. Biagi et al.</td><td>(LOQM, GEVA, RAL+)</td></tr></table>

### Ω(2470)⁻ DECAY MODES

<table><thead><tr><th>Mode</th></tr></thead><tbody><tr><td>Γ<sub>1</sub> Ω⁻π⁺π⁻</td></tr></tbody></table>

### Ω(2470)⁻ REFERENCES

<table><tr><td>ASTON</td><td>88G</td><td>PL B215 799</td><td>D. Aston et al.</td><td>(SLAC, NAGO, CINC, INUS)</td></tr></table>
## CHARMED BARYONS

$$ (C = +1) $$

$$ \begin{aligned} \Lambda_c^+ &= udc, \quad \Sigma_c^{++} = uuc, \quad \Sigma_c^+ = udc, \quad \Sigma_c^0 = ddc, \\ \Xi_c^+ &= usc, \quad \Xi_c^0 = dsc, \quad \Omega_c^0 = ssc \end{aligned} $$

$\Lambda_c^+$

$$ I(J^P) = 0(\frac{1}{2}^+) \quad \text{Status: ****} $$

The parity of the $\Lambda_c^+$ is defined to be positive (as are the parities of the proton, neutron, and $\Lambda$). The quark content is $udc$. Results of an analysis of $pK^-\pi^+$ decays (JEZABEK 92) are consistent with $J = 1/2$. ABLIKIM 21N determines the $\Lambda_c^+$ spin to be $J = 1/2$, from an angular analysis of various 2-body $\Lambda_c^+$ decays in $e^+e^- \to \Lambda_c^+ \bar{\Lambda}_c^-$.

We have omitted some results that have been superseded by later experiments. The omitted results may be found in earlier editions.

### $\Lambda_c^+$ MASS

Our value in 2004, 2284.9±0.6 MeV, was the average of the measurements now filed below as "not used." The BABAR measurement is so much better that we use it alone. Note that it is about 2.6 (old) standard deviations above the 2004 value.

The fit also includes $\Sigma_c - \Lambda_c^+$ and $\Lambda_c^{++} - \Lambda_c^+$ mass-difference measurements, but this doesn't affect the $\Lambda_c^+$ mass. The new (in 2006) $\Lambda_c^+$ mass simply pushes all those other masses higher.

<table><thead><tr><th>VALUE (MeV)</th><th>EVENTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>2286.46±0.14</td><td>OUR FIT</td><td>1 AUBERT, B</td><td>05S</td><td>BABR $\Lambda K_S^0 K^+$ and $\Sigma^0 K_S^0 K^+$</td></tr><tr><td>2286.46±0.14</td><td>4891</td><td></td><td></td><td></td></tr></tbody></table><table><tbody><tr><td>2284.7</td><td>±0.6</td><td>±0.7</td><td>1134</td><td>AVERY</td><td>91</td><td>CLEO</td><td>Six modes</td></tr><tr><td>2281.7</td><td>±2.7</td><td>±2.6</td><td>29</td><td>ALVAREZ</td><td>90b</td><td>NA14</td><td>$pK^-\pi^+$</td></tr><tr><td>2285.8</td><td>±0.6</td><td>±1.2</td><td>101</td><td>BARLAG</td><td>89</td><td>NA32</td><td>$pK^-\pi^+$</td></tr><tr><td>2284.7</td><td>±2.3</td><td>±0.5</td><td>5</td><td>AGUILAR-...</td><td>88b</td><td>LEBC</td><td>$pK^-\pi^+$</td></tr><tr><td>2283.1</td><td>±1.7</td><td>±2.0</td><td>628</td><td>ALBRECHT</td><td>88c</td><td>ARG</td><td>$pK^-\pi^+$, $p\bar{K}^0$, $\Lambda3\pi$</td></tr><tr><td>2286.2</td><td>±1.7</td><td>±0.7</td><td>97</td><td>ANJOS</td><td>88b</td><td>E691</td><td>$pK^-\pi^+$</td></tr><tr><td>2281</td><td>±3</td><td></td><td>2</td><td>JONES</td><td>87</td><td>HBC</td><td>$pK^-\pi^+$</td></tr><tr><td>2283</td><td>±3</td><td></td><td>3</td><td>BOSETTI</td><td>82</td><td>HBC</td><td>$pK^-\pi^+$</td></tr><tr><td>2290</td><td>±3</td><td></td><td>1</td><td>CALICCHIO</td><td>80</td><td>HYBR</td><td>$pK^-\pi^+$</td></tr></tbody></table>

¹AUBERT, B 05s uses low-Q $\Lambda K_S^0 K^+$ and $\Sigma^0 K_S^0 K^+$ decays to minimize systematic errors. The error above includes systematic as well as statistical errors. Many cross checks and adjustments to properties of the BABAR detector, as well as the large number of clean events, make this by far the best measurement of the $\Lambda_c^+$ mass.

### $\Lambda_c^+$ MEAN LIFE

Measurements with an error $\ge 100 \times 10^{-15}$ s or with fewer than 20 events have been omitted from the Listings.

<table><thead><tr><th>VALUE (10<sup>-15</sup> s)</th><th>EVENTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>202.6 ± 1.0</td><td>OUR AVERAGE</td><td></td><td></td><td></td></tr><tr><td>203.20 ± 0.89 ± 0.77</td><td>107k</td><td>ABUDINEN</td><td>23A</td><td>BEL2 $\Lambda_c^+ \to pK^-\pi^+$, $e^+e^- \text{ near } \gamma(4S)$</td></tr><tr><td>202.1 ± 1.7 ± 0.9</td><td>304k</td><td>1 AAIJ</td><td>19AG</td><td>LHCB $\Lambda_c^+ \to pK^-\pi^+$</td></tr><tr><td>204.6 ± 3.4 ± 2.5</td><td>8034</td><td>LINK</td><td>02C</td><td>FOCS $\Lambda_c^+ \to pK^-\pi^+$</td></tr><tr><td>198.1 ± 7.0 ± 5.6</td><td>1630</td><td>KUSHNIR...</td><td>01</td><td>SELX $\Lambda_c^+ \to pK^-\pi^+$</td></tr><tr><td>179.6 ± 6.9 ± 4.4</td><td>4749</td><td>MAHMOOD</td><td>01</td><td>CLE2 $e^+e^- \approx \gamma(4S)$</td></tr><tr><td>215 ± 16 ± 8</td><td>1340</td><td>FRABETTI</td><td>93D</td><td>E687 $\gamma\text{Be, } \Lambda_c^+ \to pK^-\pi^+$</td></tr><tr><td>• • •</td><td></td><td></td><td></td><td>We do not use the following data for averages, fits, limits, etc. • • •</td></tr><tr><td>180 ± 30 ± 30</td><td>29</td><td>ALVAREZ</td><td>90</td><td>NA14 $\gamma, \Lambda_c^+ \to pK^-\pi^+$</td></tr><tr><td>200 ± 30 ± 30</td><td>90</td><td>FRABETTI</td><td>90</td><td>E687 $\gamma\text{Be, } \Lambda_c^+ \to pK^-\pi^+$</td></tr><tr><td>196 ± 23 ± 20</td><td>101</td><td>BARLAG</td><td>89</td><td>NA32 $pK^-\pi^+$, c.c.</td></tr><tr><td>220 ± 30 ± 20</td><td>97</td><td>ANJOS</td><td>88B</td><td>E691 $pK^-\pi^+$, c.c.</td></tr></tbody></table>

¹AAIJ 19AG reports $[\Lambda_c^+ \text{ MEAN LIFE}] / [D^+ \text{ MEAN LIFE}] = 0.1956 \pm 0.0010 \pm 0.0013$ which we multiply by our best value $D^+ \text{ MEAN LIFE} = (1.033 \pm 0.005) \times 10^{-12}$ s. Our first error is their experiment's error and our second error is the systematic error from using our best value.

### $\Lambda_c^+$ DECAY MODES

Branching fractions marked with a footnote, e.g. [a], have been corrected for decay modes not observed in the experiments. For example, the sub-mode fraction $\Lambda_c^+ \to p\bar{K}^*(892)^0$ seen in $\Lambda_c^+ \to pK^-\pi^+$ has been multiplied up to include $\bar{K}^*(892)^0 \to \bar{K}^0\pi^0$ decays.

<table><thead><tr><th>Mode</th><th>Fraction (Γ<sub>f</sub>/Γ)</th><th>Scale factor/<br>Confidence level</th></tr></thead><tbody><tr><td colspan="3"><strong>Hadronic modes with a p or n: S = -1 final states</strong></td></tr><tr><td>Γ<sub>1</sub></td><td>(1.59 ± 0.07) %</td><td>S=1.1</td></tr><tr><td>Γ<sub>2</sub></td><td>(6.24 ± 0.28) %</td><td>S=1.4</td></tr><tr><td>Γ<sub>3</sub></td><td>(1.9 ± 0.6) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>4</sub></td><td>(1.39 ± 0.07) %</td><td></td></tr><tr><td>Γ<sub>5</sub></td><td>(9.2 ± 1.8) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>6</sub></td><td>(1.76 ± 0.09) %</td><td></td></tr><tr><td>Γ<sub>7</sub></td><td>(2.8 ± 1.0) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>8</sub></td><td>(2.4 ± 0.6) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>9</sub></td><td>(4.8 ± 1.9) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>10</sub></td><td>(1.16 ± 0.16) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>11</sub></td><td>(3.2 ± 1.2) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>12</sub></td><td>(7.4 ± 2.1) × 10<sup>-4</sup></td><td></td></tr><tr><td>Γ<sub>13</sub></td><td>(7.4 ± 2.2) × 10<sup>-4</sup></td><td></td></tr><tr><td>Γ<sub>14</sub></td><td>(6.0 ± 0.7) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>15</sub></td><td>(3.5 ± 0.4) %</td><td></td></tr><tr><td>Γ<sub>16</sub></td><td>(1.96 ± 0.12) %</td><td></td></tr><tr><td>Γ<sub>17</sub></td><td>(1.82 ± 0.25) %</td><td></td></tr><tr><td>Γ<sub>18</sub></td><td>(1.90 ± 0.12) %</td><td></td></tr><tr><td>Γ<sub>19</sub></td><td>(8.8 ± 0.6) × 10<sup>-3</sup></td><td>S=1.1</td></tr><tr><td>Γ<sub>20</sub></td><td>(1.59 ± 0.11) %</td><td>S=1.1</td></tr><tr><td>Γ<sub>21</sub></td><td>(4.43 ± 0.28) %</td><td>S=1.5</td></tr><tr><td>Γ<sub>22</sub></td><td>(1.4 ± 0.5) %</td><td></td></tr><tr><td>Γ<sub>23</sub></td><td>(4.6 ± 0.8) %</td><td></td></tr><tr><td>Γ<sub>24</sub></td><td>seen</td><td></td></tr><tr><td>Γ<sub>25</sub></td><td>(1.4 ± 0.9) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>26</sub></td><td>(10 ± 5) × 10<sup>-3</sup></td><td></td></tr><tr><td colspan="3"><strong>Hadronic modes with a p or n: S = 0 final states</strong></td></tr><tr><td>Γ<sub>27</sub></td><td>< 8 × 10<sup>-5</sup></td><td>CL=90%</td></tr><tr><td>Γ<sub>28</sub></td><td>(6.6 ± 1.3) × 10<sup>-4</sup></td><td></td></tr><tr><td>Γ<sub>29</sub></td><td>(1.57 ± 0.12) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>30</sub></td><td>(4.8 ± 0.9) × 10<sup>-4</sup></td><td></td></tr><tr><td>Γ<sub>31</sub></td><td>(1.11 ± 0.21) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>32</sub></td><td>(4.59 ± 0.25) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>33</sub></td><td>(3.4 ± 2.3) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>34</sub></td><td>(6.4 ± 0.9) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>35</sub></td><td>(4.5 ± 0.8) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>36</sub></td><td>(2.2 ± 1.4) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>37</sub></td><td>(1.06 ± 0.05) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>38</sub></td><td>(1.06 ± 0.14) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>39</sub></td><td>(5.2 ± 1.1) × 10<sup>-4</sup></td><td></td></tr><tr><td>Γ<sub>40</sub></td><td>(2.35 ± 0.18) × 10<sup>-4</sup></td><td></td></tr><tr><td>Γ<sub>41</sub></td><td>(10 ± 4) × 10<sup>-5</sup></td><td></td></tr><tr><td>Γ<sub>42</sub></td><td>< 6.3 × 10<sup>-5</sup></td><td>CL=90%</td></tr><tr><td colspan="3"><strong>Hadronic modes with a hyperon: S = -1 final states</strong></td></tr><tr><td>Γ<sub>43</sub></td><td>(1.29 ± 0.05) %</td><td>S=1.1</td></tr><tr><td>Γ<sub>44</sub></td><td>(3.5 ± 0.5) × 10<sup>-3</sup></td><td>S=1.1</td></tr><tr><td>Γ<sub>45</sub></td><td>(7.02 ± 0.35) %</td><td></td></tr><tr><td>Γ<sub>46</sub></td><td>(4.0 ± 0.5) %</td><td></td></tr><tr><td>Γ<sub>47</sub></td><td>(5.0 ± 0.7) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>48</sub></td><td>(5.6 ± 0.8) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>49</sub></td><td>(3.61 ± 0.26) %</td><td>S=1.4</td></tr><tr><td>Γ<sub>50</sub></td><td>(1.0 ± 0.5) %</td><td></td></tr><tr><td>Γ<sub>51</sub></td><td>(7.6 ± 1.4) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>52</sub></td><td>(1.4 ± 0.6) %</td><td></td></tr><tr><td>Γ<sub>53</sub></td><td>(5 ± 4) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>54</sub></td><td>&lt; 1.1 %</td><td>CL=90%</td></tr><tr><td>Γ<sub>55</sub></td><td>(2.2 ± 0.8) %</td><td></td></tr><tr><td>Γ<sub>56</sub></td><td>(1.84 ± 0.11) %</td><td>S=1.1</td></tr><tr><td>Γ<sub>57</sub></td><td>(9.1 ± 2.0) × 10<sup>-3</sup></td><td></td></tr><tr><td>Γ<sub>58</sub></td><td>(1.5 ± 0.5) %</td><td></td></tr><tr><td>Γ<sub>59</sub></td><td>&lt; 8 × 10<sup>-3</sup></td><td>CL=90%</td></tr><tr><td>Γ<sub>60</sub></td><td>(5.6 ± 1.1) × 10<sup>-3</sup></td><td>S=1.9</td></tr></tbody></table>
FIT INFORMATION

An overall fit to 48 branching ratios uses 75 measurements to determine 23 parameters. The overall fit has a $\chi^2 = 52.8$ for 52 degrees of freedom.

The following off-diagonal array elements are the correlation coefficients $\langle \delta x_i \delta x_j \rangle / (\delta x_i \delta x_j)$, in percent, from the fit to the branching fractions, $x_i \equiv \Gamma_i / \Gamma_{\text{total}}$.

<table><tbody><tr><td>x<sub>2</sub></td><td>47</td></tr><tr><td>x<sub>16</sub></td><td>39 47</td></tr><tr><td>x<sub>19</sub></td><td>67 31 26</td></tr><tr><td>x<sub>20</sub></td><td>37 58 31 25</td></tr><tr><td>x<sub>21</sub></td><td>43 54 32 28 54</td></tr><tr><td>x<sub>30</sub></td><td>10 20 10 6 12 11</td></tr><tr><td>x<sub>43</sub></td><td>44 50 31 29 31 33 10</td></tr><tr><td>x<sub>45</sub></td><td>39 43 30 26 27 30 9 51</td></tr><tr><td>x<sub>49</sub></td><td>40 30 20 27 35 53 6 37 34</td></tr><tr><td>x<sub>56</sub></td><td>31 65 31 20 38 35 13 33 28 19</td></tr><tr><td>x<sub>60</sub></td><td>10 15 8 7 9 9 3 19 11 8</td></tr><tr><td>x<sub>62</sub></td><td>39 35 25 26 24 30 7 60 43 36</td></tr><tr><td>x<sub>64</sub></td><td>31 33 24 21 18 21 7 24 26 15</td></tr><tr><td>x<sub>67</sub></td><td>44 84 42 29 54 55 17 43 39 33</td></tr><tr><td>x<sub>69</sub></td><td>4 8 4 2 5 4 2 4 3 2</td></tr><tr><td>x<sub>72</sub></td><td>9 12 6 6 10 12 2 9 8 17</td></tr><tr><td>x<sub>73</sub></td><td>14 26 13 10 19 23 5 13 14</td></tr><tr><td>x<sub>75</sub></td><td>22 41 21 14 26 27 8 21 19 16</td></tr><tr><td>x<sub>77</sub></td><td>17 33 16 11 21 22 7 17 15 13</td></tr><tr><td>x<sub>80</sub></td><td>6 13 6 4 8 7 3 7 6 4</td></tr><tr><td>x<sub>81</sub></td><td>20 27 15 13 16 5 41 22 16</td></tr><tr><td>x<sub>82</sub></td><td>4 9 4 3 5 6 2 5 4 3</td></tr></tbody></table>

<table><tbody><tr><td>x<sub>60</sub></td><td>10</td></tr><tr><td>x<sub>62</sub></td><td>23 12</td></tr><tr><td>x<sub>64</sub></td><td>21 6 19</td></tr><tr><td>x<sub>67</sub></td><td>54 13 32 29</td></tr><tr><td>x<sub>69</sub></td><td>5 1 3 3 7</td></tr><tr><td>x<sub>72</sub></td><td>8 2 8 5 11 1</td></tr><tr><td>x<sub>73</sub></td><td>17 4 10 14 25 2 4</td></tr><tr><td>x<sub>75</sub></td><td>27 6 16 14 49 3 5 12</td></tr><tr><td>x<sub>77</sub></td><td>21 5 12 11 39 3 4 10 19</td></tr><tr><td>x<sub>80</sub></td><td>8 2 5 4 11 1 2 3 5 4</td></tr><tr><td>x<sub>81</sub></td><td>17 8 25 11 23 2 4 7 11 9</td></tr><tr><td>x<sub>82</sub></td><td>6 1 3 3 8 1 1 2 4 3</td></tr></tbody></table>

<table><tbody><tr><td>x<sub>81</sub></td><td>3</td></tr><tr><td>x<sub>82</sub></td><td>1 2</td></tr></tbody></table>

Λ<sup>+</sup><sub>c</sub> BRANCHING RATIOS

A few really obsolete results have been omitted.

Hadronic modes with a p: S = -1 final states

$$ \Gamma(\rho K_S^0)/\Gamma_{\text{total}} \quad \Gamma_1/\Gamma $$

VALUE (%) EVTS DOCUMENT ID TECN COMMENT

1.59±0.07 OUR FIT Error includes scale factor of 1.1.

1.52±0.08±0.03 1243 ABLIKIM 16 BES3 $e^+e^- \to \Lambda_c \bar{\Lambda}_c$, 4.599 GeV

$$ \Gamma(\rho K_S^0)/\Gamma(\rho K^- \pi^+) \quad \Gamma_1/\Gamma_2 $$

Measurements given as a $\bar{\Lambda}^0$ ratio have been divided by 2 to convert to a $K_S^0$ ratio.

VALUE EVTS DOCUMENT ID TECN COMMENT

0.255±0.011 OUR FIT Error includes scale factor of 1.3.

0.234±0.020 OUR AVERAGE

0.23 ±0.01 ±0.02 1025 ALAM 98 CLE2 $e^+e^- \approx \Gamma(4S)$

0.22 ±0.04 ±0.03 133 AVERY 91 CLEO $e^+e^- \approx 10.5$ GeV

0.28 ±0.09 ±0.07 45 ANJOS 90 E691 $\gamma$Be 70-260 GeV

0.31 ±0.08 ±0.02 73 ALBRECHT 88C ARG $e^+e^- \approx 10$ GeV

$$ \Gamma_{61} \Xi(1690)^0 K^+, \Xi^{*0} \to \Lambda \bar{\Lambda}^0 \quad (1.6 \pm 0.5) \times 10^{-3} $$

$$ \Gamma_{62} \Sigma^0 \pi^+ \quad (1.27 \pm 0.06) \% \quad S=1.1 $$

$$ \Gamma_{63} \Sigma^0 \pi^+ \eta \quad (7.5 \pm 0.8) \times 10^{-3} $$

$$ \Gamma_{64} \Sigma^+ \pi^0 \quad (1.24 \pm 0.09) \% $$

$$ \Gamma_{65} \Sigma^+ \eta \quad (3.2 \pm 0.5) \times 10^{-3} $$

$$ \Gamma_{66} \Sigma^+ \eta' \quad (4.1 \pm 0.8) \times 10^{-3} $$

$$ \Gamma_{67} \Sigma^+ \pi^+ \pi^- \quad (4.47 \pm 0.22) \% \quad S=1.2 $$

$$ \Gamma_{68} \Sigma^+ \rho^0 \quad < 1.7 \% \quad \text{CL}=95\% $$

$$ \Gamma_{69} \Sigma^- 2\pi^+ \quad (1.86 \pm 0.18) \% $$

$$ \Gamma_{70} \Sigma^0 \pi^+ \pi^0 \quad (3.5 \pm 0.4) \% $$

$$ \Gamma_{71} \Sigma^+ \pi^0 \pi^0 \quad (1.54 \pm 0.14) \% $$

$$ \Gamma_{72} \Sigma^0 \pi^- 2\pi^+ \quad (1.10 \pm 0.30) \% $$

$$ \Gamma_{73} \Sigma^+ \omega \quad (1.69 \pm 0.20) \% $$

$$ \Gamma_{74} \Sigma^- \pi^0 2\pi^+ \quad (2.1 \pm 0.4) \% $$

$$ \Gamma_{75} \Sigma^+ K^+ K^- \quad (3.59 \pm 0.35) \times 10^{-3} \quad S=1.1 $$

$$ \Gamma_{76} \Sigma^+ K^+ K^- (\text{non-}\phi) \quad (1.11 \pm 0.17) \times 10^{-4} \quad S=1.1 $$

$$ \Gamma_{77} \Sigma^+ \phi \quad [a] (3.9 \pm 0.5) \times 10^{-3} \quad S=1.1 $$

$$ \Gamma_{78} \Xi(1690)^0 K^+, \Xi^{*0} \to \Sigma^+ K^- \quad (1.01 \pm 0.25) \times 10^{-3} $$

$$ \Gamma_{79} \Sigma^+ K^+ K^- \text{ nonresonant} \quad < 8 \times 10^{-4} \quad \text{CL}=90\% $$

$$ \Gamma_{80} \Xi^0 K^+ \quad (5.5 \pm 0.7) \times 10^{-3} \quad S=1.1 $$

$$ \Gamma_{81} \Xi^- K^+ \pi^+ \quad (6.2 \pm 0.5) \times 10^{-3} \quad S=1.1 $$

$$ \Gamma_{82} \Xi(1530)^0 K^+ \quad (4.3 \pm 0.9) \times 10^{-3} \quad S=1.1 $$

Hadronic modes with a hyperon: S = 0 final states

$$ \Gamma_{83} \Lambda K^+ \quad (6.42 \pm 0.31) \times 10^{-4} $$

$$ \Gamma_{84} \Lambda K^+ \pi^+ \pi^- \quad < 5 \times 10^{-4} \quad \text{CL}=90\% $$

$$ \Gamma_{85} \Sigma^0 K^+ \quad (3.70 \pm 0.31) \times 10^{-4} $$

$$ \Gamma_{86} \Sigma^+ K_S^0 \quad (4.7 \pm 1.4) \times 10^{-4} \quad \text{CL}=90\% $$

$$ \Gamma_{87} \Sigma^0 K^+ \pi^+ \pi^- \quad < 2.5 \times 10^{-4} \quad \text{CL}=90\% $$

$$ \Gamma_{88} \Sigma^+ K^+ \pi^- \quad (2.00 \pm 0.26) \times 10^{-3} $$

$$ \Gamma_{89} \Sigma^+ K^*(892)^0 \quad [a] (3.5 \pm 1.0) \times 10^{-3} \quad \text{CL}=90\% $$

$$ \Gamma_{90} \Sigma^+ K^+ \pi^- \pi^0 \quad < 1.1 \times 10^{-3} \quad \text{CL}=90\% $$

$$ \Gamma_{91} \Sigma^- K^+ \pi^+ \quad < 1.2 \times 10^{-3} \quad \text{CL}=90\% $$

Doubly Cabibbo-suppressed modes

$$ \Gamma_{92} \rho K^+ \pi^- \quad (1.11 \pm 0.17) \times 10^{-4} $$

Semileptonic modes

$$ \Gamma_{93} \Lambda e^+ \nu_e \quad (3.56 \pm 0.13) \% $$

$$ \Gamma_{94} \Lambda \pi^+ \pi^- e^+ \nu_e \quad < 3.9 \times 10^{-4} \quad \text{CL}=90\% $$

$$ \Gamma_{95} \rho K^- e^+ \nu_e \quad (8.8 \pm 1.8) \times 10^{-4} \quad \text{CL}=90\% $$

$$ \Gamma_{96} \rho K_S^0 \pi^- e^+ \nu_e \quad < 3.3 \times 10^{-4} \quad \text{CL}=90\% $$

$$ \Gamma_{97} \Lambda(1520) e^+ \nu_e \quad (1.0 \pm 0.5) \times 10^{-3} $$

$$ \Gamma_{98} \Lambda(1405)^0 e^+ \nu_e, \Lambda^0 \to \rho K^- \quad (4.2 \pm 1.9) \times 10^{-4} $$

$$ \Gamma_{99} \Lambda \mu^+ \nu_\mu \quad (3.48 \pm 0.17) \% $$

Inclusive modes

$$ \Gamma_{100} e^+ \text{ anything} \quad (4.06 \pm 0.13) \% $$

$$ \Gamma_{101} \rho \text{ anything} \quad (50 \pm 16) \% $$

$$ \Gamma_{102} n \text{ anything} \quad (32.6 \pm 1.6) \% $$

$$ \Gamma_{103} \Lambda \text{ anything} \quad (38.2 \pm 2.9) \% $$

$$ \Gamma_{104} K_S^0 \text{ anything} \quad (9.9 \pm 0.7) \% $$

$$ \Gamma_{105} 3\text{prongs} \quad (24 \pm 8) \% $$

$\Delta$C = 1 weak neutral current (C1) modes, or Lepton Family number (LF), or Lepton number (L), or Baryon number (B) violating modes

$$ \Gamma_{106} \rho e^+ e^- \quad C1 \quad < 5.5 \times 10^{-6} \quad \text{CL}=90\% $$

$$ \Gamma_{107} \rho \mu^+ \mu^- \text{ non-resonant} \quad C1 \quad < 7.7 \times 10^{-8} \quad \text{CL}=90\% $$

$$ \Gamma_{108} \rho e^+ \mu^- \quad LF \quad < 9.9 \times 10^{-6} \quad \text{CL}=90\% $$

$$ \Gamma_{109} \rho e^- \mu^+ \quad LF \quad < 1.9 \times 10^{-5} \quad \text{CL}=90\% $$

$$ \Gamma_{110} \bar{\rho} 2e^+ \quad L,B \quad < 2.7 \times 10^{-6} \quad \text{CL}=90\% $$

$$ \Gamma_{111} \bar{\rho} 2\mu^+ \quad L,B \quad < 9.4 \times 10^{-6} \quad \text{CL}=90\% $$

$$ \Gamma_{112} \bar{\rho} e^+ \mu^+ \quad L,B \quad < 1.6 \times 10^{-5} \quad \text{CL}=90\% $$

$$ \Gamma_{113} \Sigma^- \mu^+ \mu^+ \quad L \quad < 7.0 \times 10^{-4} \quad \text{CL}=90\% $$

Radiative modes

$$ \Gamma_{114} \Sigma^+ \gamma \quad < 2.5 \times 10^{-4} \quad \text{CL}=90\% $$

Exotic modes

$$ \Gamma_{115} \rho \gamma_D \quad [b] < 8.0 \times 10^{-5} \quad \text{CL}=90\% $$

[a] This branching fraction includes all the decay modes of the final-state resonance.

[b] Here $\gamma_D$ stands for a dark photon.
$\Gamma(\rho K^{-} \pi^{+})/\Gamma_{\text{total}}$

<table><thead><tr><th>VALUE (%)</th><th>EVENTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

6.24±0.28 OUR FIT Error includes scale factor of 1.4.

6.3 ±0.5 OUR AVERAGE Error includes scale factor of 2.0.

5.84±0.27±0.23 6.3k ABLIKIM 16 BES3 $e^{+}e^{-} \rightarrow \Lambda_{c} \bar{\Lambda}_{c}$, 4.599 GeV

6.84±0.24<sup>+0.21</sup><sub>-0.27</sub> 1.4k 1 ZUPANC 14 BELL $e^{+}e^{-} \rightarrow D^{(*)-} \bar{p} \pi^{+}$ recoil

• • • We do not use the following data for averages, fits, limits, etc. • • •

5.0 ±1.3 2 PDG 02 See footnote

1 This ZUPANC 14 value is the FIRST-EVER model-independent measurement of a $\Lambda_{c}^{+}$ branching fraction.

2 See the note by P. Burchat, "$\Lambda_{c}^{+}$ Branching Fractions," in any edition of the Review from 2002 through 2014 for how this value was obtained. It is now obsolete.

$\Gamma(\rho \bar{K}^{0}(700)^{0})/\Gamma(\rho K^{-} \pi^{+})$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>EVENTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

3.02±0.16±0.18±0.92 1 AAIJ 23Z LHCB 1.7fb<sup>-1</sup>, pp at 13 TeV

1 AAIJ 23Z uses an amplitude analysis of 400k $\Lambda_{c} \rightarrow pK^{-} \pi^{+}$ decays, the last uncertainty is due to the amplitude model.

$\Gamma(\rho \bar{K}^{*}(892)^{0})/\Gamma(\rho K^{-} \pi^{+})$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>EVENTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

22.3 ± 0.7 OUR AVERAGE 1 AAIJ 23Z LHCB 1.7fb<sup>-1</sup>, pp at 13 TeV

22.14 ± 0.23±0.04±0.64 1 AAIJ 23Z LHCB 1.7fb<sup>-1</sup>, pp at 13 TeV

29 ± 4 ±3 2 AITALA 00 E791 $\pi^{-}N$, 500 GeV

• • • We do not use the following data for averages, fits, limits, etc. • • •

35 ± 6/7 ±3 39 BOZEK 93 NA32 $\pi^{-}Cu$ 230 GeV

35 ±11 BARLAG 90D NA32 See BOZEK 93

42 ±24 12 BASILE 81B CNTR $pp \rightarrow \Lambda_{c}^{+}e^{-}X$

1 AAIJ 23Z uses an amplitude analysis of 400k $\Lambda_{c} \rightarrow pK^{-} \pi^{+}$ decays, the last uncertainty is due to the amplitude model.

2 AITALA 00 makes a coherent 5-dimensional amplitude analysis of 946 ± 38 $\Lambda_{c}^{+} \rightarrow pK^{-} \pi^{+}$ decays.

$\Gamma(\rho \bar{K}^{0}(1430))/\Gamma(\rho K^{-} \pi^{+})$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>EVENTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

14.7±0.6±0.1±2.7 1 AAIJ 23Z LHCB 1.7fb<sup>-1</sup>, pp at 13 TeV

1 AAIJ 23Z uses an amplitude analysis of 400k $\Lambda_{c} \rightarrow pK^{-} \pi^{+}$ decays, the last uncertainty is due to the amplitude model.

$\Gamma(\Delta(1232)^{++} K^{-})/\Gamma(\rho K^{-} \pi^{+})$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>EVENTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

28.2 ± 0.8 OUR AVERAGE 1 AAIJ 23Z LHCB 1.7 fb<sup>-1</sup>, pp at 13 TeV

28.60 ± 0.29±0.16±0.76 1 AAIJ 23Z LHCB 1.7 fb<sup>-1</sup>, pp at 13 TeV

18 ± 3 ±3 2 AITALA 00 E791 $\pi^{-}N$, 500 GeV

• • • We do not use the following data for averages, fits, limits, etc. • • •

12 ± 4/5 ±5 14 BOZEK 93 NA32 $\pi^{-}Cu$ 230 GeV

40 ±17 17 BASILE 81B CNTR $pp \rightarrow \Lambda_{c}^{+}e^{-}X$

1 AAIJ 23Z uses an amplitude analysis of 400k $\Lambda_{c} \rightarrow pK^{-} \pi^{+}$ decays, the last uncertainty is due to the amplitude model.

2 AITALA 00 makes a coherent 5-dimensional amplitude analysis of 946 ± 38 $\Lambda_{c}^{+} \rightarrow pK^{-} \pi^{+}$ decays.

$\Gamma(\Delta(1600)^{++} K^{-})/\Gamma(\rho K^{-} \pi^{+})$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>EVENTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

4.5±0.3±0.1±1.5 1 AAIJ 23Z LHCB 1.7fb<sup>-1</sup>, pp at 13 TeV

1 AAIJ 23Z uses an amplitude analysis of 400k $\Lambda_{c} \rightarrow pK^{-} \pi^{+}$ decays, the last uncertainty is due to the amplitude model.

$\Gamma(\Delta(1700)^{++} K^{-})/\Gamma(\rho K^{-} \pi^{+})$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>EVENTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

3.90±0.20±0.07±0.94 1 AAIJ 23Z LHCB 1.7fb<sup>-1</sup>, pp at 13 TeV

1 AAIJ 23Z uses an amplitude analysis of 400k $\Lambda_{c} \rightarrow pK^{-} \pi^{+}$ decays, the last uncertainty is due to the amplitude model.

$\Gamma(\Lambda(1405)^{0} \pi^{+})/\Gamma(\rho K^{-} \pi^{+})$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>EVENTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

7.7±0.2±0.2±3.0 1 AAIJ 23Z LHCB 1.7fb<sup>-1</sup>, pp at 13 TeV

1 AAIJ 23Z uses an amplitude analysis of 400k $\Lambda_{c} \rightarrow pK^{-} \pi^{+}$ decays, the last uncertainty is due to the amplitude model.

$\Gamma(\Lambda(1520)^{+} \pi^{+})/\Gamma(\rho K^{-} \pi^{+})$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>EVENTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

1.86 ± 0.09±0.03±0.23 1 AAIJ 23Z LHCB 1.7 fb<sup>-1</sup>, pp at 13 TeV

• • • We do not use the following data for averages, fits, limits, etc. • • •

34 ± 8 ±5 2 AITALA 00 E791 $\pi^{-}N$, 500 GeV

40 ±18/-13 ±9 12 BOZEK 93 NA32 $\pi^{-}Cu$ 230 GeV

1 AAIJ 23Z uses an amplitude analysis of 400k $\Lambda_{c} \rightarrow pK^{-} \pi^{+}$ decays, the last uncertainty is due to the amplitude model.

2 AITALA 00 makes a coherent 5-dimensional amplitude analysis of 946 ± 38 $\Lambda_{c}^{+} \rightarrow pK^{-} \pi^{+}$ decays.

$\Gamma(\Lambda(1600)^{+} \pi^{+})/\Gamma(\rho K^{-} \pi^{+})$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

5.2±0.2±0.1±1.9 1 AAIJ 23Z LHCB 1.7fb<sup>-1</sup>, pp at 13 TeV

1 AAIJ 23Z uses an amplitude analysis of 400k $\Lambda_{c} \rightarrow pK^{-} \pi^{+}$ decays, the last uncertainty is due to the amplitude model.

$\Gamma(\Lambda(1670)^{+} \pi^{+})/\Gamma(\rho K^{-} \pi^{+})$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

1.18±0.06±0.01±0.32 1 AAIJ 23Z LHCB 1.7fb<sup>-1</sup>, pp at 13 TeV

1 AAIJ 23Z uses an amplitude analysis of 400k $\Lambda_{c} \rightarrow pK^{-} \pi^{+}$ decays, the last uncertainty is due to the amplitude model.

$\Gamma(\Lambda(1690)^{+} \pi^{+})/\Gamma(\rho K^{-} \pi^{+})$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

1.19±0.09±0.01±0.34 1 AAIJ 23Z LHCB 1.7fb<sup>-1</sup>, pp at 13 TeV

1 AAIJ 23Z uses an amplitude analysis of 400k $\Lambda_{c} \rightarrow pK^{-} \pi^{+}$ decays, the last uncertainty is due to the amplitude model.

$\Gamma(\Lambda(2000)^{+} \pi^{+})/\Gamma(\rho K^{-} \pi^{+})$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

9.58±0.27±0.23±0.93 1 AAIJ 23Z LHCB 1.7fb<sup>-1</sup>, pp at 13 TeV

1 AAIJ 23Z uses an amplitude analysis of 400k $\Lambda_{c} \rightarrow pK^{-} \pi^{+}$ decays, the last uncertainty is due to the amplitude model.

$\Gamma(\rho K^{-} \pi^{+} \text{nonresonant})/\Gamma(\rho K^{-} \pi^{+})$

<table><thead><tr><th>VALUE</th><th>EVENTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

0.55±0.06 OUR AVERAGE 1 AITALA 00 E791 $\pi^{-}N$, 500 GeV

0.56 ±0.07/0.09 ±0.05 71 BOZEK 93 NA32 $\pi^{-}Cu$ 230 GeV

1 AITALA 00 makes a coherent 5-dimensional amplitude analysis of 946 ± 38 $\Lambda_{c}^{+} \rightarrow pK^{-} \pi^{+}$ decays.

$\Gamma(\rho K^{0}_{S} \pi^{0})/\Gamma_{\text{total}}$

<table><thead><tr><th>VALUE (%)</th><th>EVENTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

1.96±0.12 OUR FIT 1 AAIJ 16 BES3 $e^{+}e^{-} \rightarrow \Lambda_{c} \bar{\Lambda}_{c}$, 4.599 GeV

1.87±0.13±0.05 558 ABLIKIM 16 BES3 $e^{+}e^{-} \rightarrow \Lambda_{c} \bar{\Lambda}_{c}$, 4.599 GeV

$\Gamma(\rho K^{0}_{S} \pi^{0})/\Gamma(\rho K^{-} \pi^{+})$

<table><thead><tr><th>VALUE</th><th>EVENTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

0.314±0.018 OUR FIT 774 ALAM 98 CLE2 $e^{+}e^{-} \approx \Upsilon(4S)$

0.33 ±0.03 ±0.04 83 ABLIKIM 17H BES3 $e^{+}e^{-} \text{ at } 4.6 \text{ GeV}$

$\Gamma(\rho K^{0}_{S} \pi^{+})/\Gamma_{\text{total}}$

<table><thead><tr><th>VALUE (%)</th><th>EVENTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

1.82±0.23±0.11 83 ABLIKIM 17H BES3 $e^{+}e^{-} \text{ at } 4.6 \text{ GeV}$

$\Gamma(\rho K^{-} \pi^{+} \pi^{+})/\Gamma_{\text{total}}$

<table><thead><tr><th>VALUE (%)</th><th>EVENTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

1.90±0.08±0.09 810 ABLIKIM 23A BES 4.5 fb<sup>-1</sup>, $e^{+}e^{-} \text{ at } 4.600-4.699 \text{ GeV}$

$\Gamma(\rho K^{0}_{S} \eta)/\Gamma_{\text{total}}$

<table><thead><tr><th>VALUE (%)</th><th>EVENTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

0.88 ± 0.06 OUR FIT Error includes scale factor of 1.1.

0.828±0.168±0.056 42 1 ABLIKIM 21H BES3 $e^{+}e^{-} \text{ at } 4.6 \text{ GeV}$

1 ABLIKIM 21H measures $B(\Lambda_{c}^{+} \rightarrow pK_{S}^{0} \eta) = (0.414 \pm 0.084 \pm 0.028)\%$.

$\Gamma(\rho K^{0}_{S} \eta)/\Gamma(\rho K^{0}_{S})$

<table><thead><tr><th>VALUE</th><th>EVENTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

0.551±0.029 OUR FIT 12.6k 1 LI 23B BELL $e^{+}e^{-} \rightarrow \Upsilon(1S)$

0.546±0.012±0.026 1 LI 23B measures $B(\Lambda_{c}^{+} \rightarrow pK_{S}^{0} \eta)/B(\Lambda_{c}^{+} \rightarrow pK_{S}^{0} \eta) = 0.273 \pm 0.006 \pm 0.013$.

$\Gamma(\rho K^{0}_{S} \eta)/\Gamma(\rho K^{-} \pi^{+})$

<table><thead><tr><th>VALUE</th><th>EVENTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

0.141±0.009 OUR FIT Error includes scale factor of 1.1.

0.25 ±0.04 ±0.04 57 AMMAR 95 CLE2 $e^{+}e^{-} \approx \Upsilon(4S)$
$$ \Gamma(\rho K_S^0 \pi^+ \pi^-) / \Gamma_{\text{total}} \qquad \Gamma_{20/\Gamma} $$

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>1.59 ± 0.11</td><td>OUR FIT</td><td></td><td></td><td>Error includes scale factor of 1.1.</td></tr><tr><td>1.53 ± 0.11 ± 0.09</td><td>485</td><td>ABLIKIM</td><td>16</td><td>BES3 e<sup>+</sup> e<sup>-</sup> → Λ<sub>c</sub> ¯Λ<sub>c</sub>, 4.599 GeV</td></tr></tbody></table>

$$ \Gamma(\rho K_S^0 \pi^+ \pi^-) / \Gamma(\rho K^- \pi^+) \qquad \Gamma_{20/\Gamma} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.255 ± 0.014</td><td>OUR FIT</td><td></td><td></td><td></td></tr><tr><td>0.257 ± 0.031</td><td>OUR AVERAGE</td><td></td><td></td><td></td></tr><tr><td>0.26 ± 0.02</td><td>± 0.03</td><td>985</td><td></td><td>e<sup>+</sup> e<sup>-</sup> ≈ Υ(4S)</td></tr><tr><td>0.22 ± 0.06</td><td>± 0.02</td><td>83</td><td></td><td>e<sup>+</sup> e<sup>-</sup> 10.5 GeV</td></tr><tr><td>0.49 ± 0.18</td><td>± 0.04</td><td>12</td><td></td><td>BARLAG π<sup>-</sup> 230 GeV</td></tr></tbody></table>

$$ \Gamma(\rho K^- \pi^+ \pi^0) / \Gamma_{\text{total}} \qquad \Gamma_{21/\Gamma} $$

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>4.43 ± 0.28</td><td>OUR FIT</td><td></td><td></td><td>Error includes scale factor of 1.5.</td></tr><tr><td>4.53 ± 0.23 ± 0.30</td><td>1849</td><td>ABLIKIM</td><td>16</td><td>BES3 e<sup>+</sup> e<sup>-</sup> → Λ<sub>c</sub> ¯Λ<sub>c</sub>, 4.599 GeV</td></tr></tbody></table>

$$ \Gamma(\rho K^- \pi^+ \pi^0) / \Gamma(\rho K^- \pi^+) \qquad \Gamma_{21/\Gamma} $$

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.71 ± 0.04</td><td>OUR FIT</td><td></td><td></td><td>Error includes scale factor of 2.3.</td></tr><tr><td>0.685 ± 0.019</td><td>OUR AVERAGE</td><td></td><td></td><td></td></tr><tr><td>0.685 ± 0.007</td><td>± 0.018</td><td>242k</td><td>17</td><td>BELL e<sup>+</sup> e<sup>-</sup> ≈ Υ(4S), Υ(5S)</td></tr><tr><td>0.67 ± 0.04</td><td>± 0.11</td><td>2.6k</td><td>98</td><td>CLE2 e<sup>+</sup> e<sup>-</sup> ≈ Υ(4S)</td></tr></tbody></table>

$$ \Gamma(\rho K^*(892)^- \pi^+) / \Gamma(\rho K_S^0 \pi^+ \pi^-) \qquad \Gamma_{22/\Gamma} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.88 ± 0.28</td><td>17</td><td>ALEEV</td><td>94</td><td>BIS2 nN 20–70 GeV</td></tr></tbody></table>

$$ \Gamma(\rho(K^- \pi^+)_{\text{nonresonant}} \pi^0) / \Gamma(\rho K^- \pi^+) \qquad \Gamma_{23/\Gamma} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.73 ± 0.12 ± 0.05</td><td>67</td><td>BOZEK</td><td>93</td><td>NA32 π<sup>-</sup> Cu 230 GeV</td></tr></tbody></table>

$$ \Gamma(\Delta(1232)K^*(892)) / \Gamma_{\text{total}} \qquad \Gamma_{24/\Gamma} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>seen</td><td>35</td><td>AMENDOLIA</td><td>87</td><td>SPEC γGe-Si</td></tr></tbody></table>

$$ \Gamma(\rho K^- 2\pi^+ \pi^-) / \Gamma(\rho K^- \pi^+) \qquad \Gamma_{25/\Gamma} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.022 ± 0.015</td><td></td><td>BARLAG</td><td>90D</td><td>NA32 π<sup>-</sup> 230 GeV</td></tr></tbody></table>

$$ \Gamma(\rho K^- \pi^+ 2\pi^0) / \Gamma(\rho K^- \pi^+) \qquad \Gamma_{26/\Gamma} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.16 ± 0.07 ± 0.03</td><td>15</td><td>BOZEK</td><td>93</td><td>NA32 π<sup>-</sup> Cu 230 GeV</td></tr></tbody></table>

Hadronic modes with a p and n: S = 0 final states

$$ \Gamma(\rho K^0) / \Gamma_{\text{total}} \qquad \Gamma_{27/\Gamma} $$

<table><thead><tr><th>VALUE</th><th>CL%</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>• • •</td><td>We do not use the following data for averages, fits, limits, etc.</td><td></td><td></td><td>• • •</td></tr><tr><td>&lt;2.7 × 10<sup>-4</sup></td><td>90</td><td>ABLIKIM</td><td>17Q</td><td>BES3 e<sup>+</sup> e<sup>-</sup> at 4.6 GeV</td></tr></tbody></table>

$$ \Gamma(\rho K^0) / \Gamma(\rho K^- \pi^+) \qquad \Gamma_{27/\Gamma} $$

<table><thead><tr><th>VALUE</th><th>CL%</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>&lt;1.273 × 10<sup>-3</sup></td><td>90</td><td>7.7k</td><td>1 LI</td><td>21</td><td>BELL e<sup>+</sup> e<sup>-</sup> at Υ(nS)</td></tr></tbody></table>

1 Uses B(π⁰ → γγ) = 0.9882 ± 0.0003.

$$ \Gamma(\pi K^+) / \Gamma_{\text{total}} \qquad \Gamma_{28/\Gamma} $$

<table><thead><tr><th>VALUE (units 10<sup>-4</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>6.6 ± 1.2 ± 0.4</td><td>50</td><td>ABLIKIM</td><td>22S</td><td>BES3 e<sup>+</sup> e<sup>-</sup> at 4.612–4.699 GeV</td></tr></tbody></table>

$$ \Gamma(\rho \eta) / \Gamma_{\text{total}} \qquad \Gamma_{29/\Gamma} $$

<table><thead><tr><th>VALUE (units 10<sup>-3</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>1.57 ± 0.11 ± 0.04</td><td>507</td><td>1 ABLIKIM</td><td>23CB</td><td>BES3 η' → 2γ, π<sup>+</sup> π<sup>0</sup> π<sup>-</sup></td></tr></tbody></table>

<table><thead><tr><th>VALUE (units 10<sup>-3</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>1.24 ± 0.28 ± 0.10</td><td>52</td><td>ABLIKIM</td><td>17Q</td><td>BES3 η' → 2γ, π<sup>+</sup> π<sup>0</sup> π<sup>-</sup></td></tr></tbody></table>

$$ \Gamma(\rho \eta) / \Gamma(\rho K^- \pi^+) \qquad \Gamma_{29/\Gamma} $$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>2.258 ± 0.077 ± 0.122</td><td>7.7k</td><td>1 LI</td><td>21</td><td>BELL e<sup>+</sup> e<sup>-</sup> at Υ(nS)</td></tr></tbody></table>

1 Uses B(η' → γγ) = 0.3941 ± 0.0020.

$$ \Gamma(\rho \eta') / \Gamma_{\text{total}} \qquad \Gamma_{30/\Gamma} $$

<table><thead><tr><th>VALUE (units 10<sup>-4</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>4.8 ± 0.9</td><td>OUR FIT</td><td></td><td></td><td></td></tr><tr><td>5.62<sup>+2.46</sup><sub>-2.04</sub> ± 0.26</td><td>9</td><td>1 ABLIKIM</td><td>22AN</td><td>BES3 e<sup>+</sup> e<sup>-</sup> at 4.600–4.699 GeV</td></tr></tbody></table>

1 Observed with 3.6 σ statistical significance with 4.5 fb⁻¹ of e⁺ e⁻ collisions between 4.600 and 4.699 GeV. The η' is reconstructed in the two decay modes η' → π⁺π⁻η and η' → π⁺π⁻γ, with signal yields 4.9<sup>+3.2</sup><sub>-2.6</sub> and 4.3<sup>+2.6</sup><sub>-2.2</sub> events, respectively.

$$ \Gamma(\rho \eta') / \Gamma(\rho K^- \pi^+) \qquad \Gamma_{30/\Gamma} $$

<table><thead><tr><th>VALUE (units 10<sup>-3</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>7.8 ± 1.4</td><td>OUR FIT</td><td></td><td></td><td></td></tr><tr><td>7.54 ± 1.32 ± 0.73</td><td></td><td>LI</td><td>22B</td><td>BELL e<sup>+</sup> e<sup>-</sup> at Υ(nS)</td></tr></tbody></table>

$$ \Gamma(\rho \omega(782)^0) / \Gamma_{\text{total}} \qquad \Gamma_{31/\Gamma} $$

<table><thead><tr><th>VALUE (units 10<sup>-4</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>11.1 ± 2.0 ± 0.7</td><td>234</td><td>1 ABLIKIM</td><td>23CB</td><td>BES3 ω → π<sup>+</sup> π<sup>-</sup> π<sup>0</sup></td></tr></tbody></table>

<table><thead><tr><th>• • •</th><th>We do not use the following data for averages, fits, limits, etc.</th><th>• • •</th></tr></thead><tbody><tr><td>9.4 ± 3.2 ± 2.2</td><td>13</td><td>AAIJ</td><td>18N</td><td>LHCB Seen in Λ<sub>c</sub><sup>+</sup> → ρμ<sup>+</sup> μ<sup>-</sup></td></tr></tbody></table>

¹ ABLIKIM 23CB report a significance of 5.7σ.

$$ \Gamma(\rho \omega(782)^0) / \Gamma(\rho K^- \pi^+) \qquad \Gamma_{31/\Gamma} $$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>1.32 ± 0.12 ± 0.10</td><td>1.8k</td><td>1 LI</td><td>21E</td><td>BELL e<sup>+</sup> e<sup>-</sup> at Υ(nS)</td></tr></tbody></table>

¹ LI 21E reconstructs the ω(782) via ω → π⁺π⁻π⁰ and π⁰ → γγ.

$$ \Gamma(\rho \pi^+ \pi^-) / \Gamma(\rho K^- \pi^+) \qquad \Gamma_{32/\Gamma} $$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

<table><thead><tr><th>7.35 ± 0.24</th><th>OUR AVERAGE</th><th>Error includes scale factor of 1.3.</th></tr></thead><tbody><tr><td>7.44 ± 0.08</td><td>± 0.18</td><td>20k</td><td>AAIJ</td><td>18V</td><td>LHCB Λ<sub>b</sub><sup>0</sup> → Λ<sub>c</sub><sup>+</sup> μ<sup>-</sup> X</td></tr><tr><td>6.70 ± 0.48</td><td>± 0.25</td><td>495</td><td>ABLIKIM</td><td>16U</td><td>BES3 e<sup>+</sup> e<sup>-</sup> at 4.599 GeV</td></tr><tr><td>6.9 ± 3.6</td><td></td><td>5</td><td>BARLAG</td><td>90D</td><td>NA32 π<sup>-</sup> 230 GeV</td></tr></tbody></table>

$$ \Gamma(\rho f_0(980)) / \Gamma(\rho K^- \pi^+) \qquad \Gamma_{33/\Gamma} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.055 ± 0.036</td><td></td><td>BARLAG</td><td>90D</td><td>NA32 π<sup>-</sup> 230 GeV</td></tr></tbody></table>

$$ \Gamma(\pi \pi^+ \pi^-) / \Gamma_{\text{total}} \qquad \Gamma_{34/\Gamma} $$

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.64 ± 0.09 ± 0.02</td><td>150</td><td>ABLIKIM</td><td>23A</td><td>BES</td></tr></tbody></table>

$$ \Gamma(\pi \pi^+ \pi^- \pi^+) / \Gamma_{\text{total}} \qquad \Gamma_{35/\Gamma} $$

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.45 ± 0.07 ± 0.03</td><td>120</td><td>ABLIKIM</td><td>23A</td><td>BES</td></tr></tbody></table>

$$ \Gamma(\rho 2\pi^+ 2\pi^-) / \Gamma(\rho K^- \pi^+) \qquad \Gamma_{36/\Gamma} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.036 ± 0.023</td><td></td><td>BARLAG</td><td>90D</td><td>NA32 π<sup>-</sup> 230 GeV</td></tr></tbody></table>

$$ \Gamma(\rho K^+ K^-) / \Gamma(\rho K^- \pi^+) \qquad \Gamma_{37/\Gamma} $$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

<table><thead><tr><th>1.70 ± 0.04</th><th>OUR AVERAGE</th><th></th></tr></thead><tbody><tr><td>1.70 ± 0.03</td><td>± 0.03</td><td>3.4k</td><td>AAIJ</td><td>18V</td><td>LHCB Λ<sub>b</sub><sup>0</sup> → Λ<sub>c</sub><sup>+</sup> μ<sup>-</sup> X</td></tr><tr><td>1.4 ± 0.2</td><td>± 0.2</td><td>676</td><td>ABE</td><td>02C</td><td>BELL e<sup>+</sup> e<sup>-</sup> ≈ Υ(4S)</td></tr><tr><td>3.9 ± 0.9</td><td>± 0.7</td><td>214</td><td>ALEXANDER</td><td>96C</td><td>CLE2 e<sup>+</sup> e<sup>-</sup> ≈ Υ(4S)</td></tr></tbody></table>

<table><thead><tr><th>• • •</th><th>We do not use the following data for averages, fits, limits, etc.</th><th>• • •</th></tr></thead><tbody><tr><td>9.6 ± 2.9 ± 1.0</td><td>30</td><td>FRABETTI</td><td>93H</td><td>E687 γBe, E<sub>γ</sub> 220 GeV</td></tr><tr><td>4.8 ± 2.7</td><td></td><td>BARLAG</td><td>90D</td><td>NA32 π<sup>-</sup> 230 GeV</td></tr></tbody></table>

$$ \Gamma(\rho \phi) / \Gamma(\rho K^- \pi^+) \qquad \Gamma_{38/\Gamma} $$

Unseen decay modes of the φ are included.

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>1.70 ± 0.21</td><td>OUR AVERAGE</td><td></td><td></td><td></td></tr><tr><td>1.81 ± 0.33</td><td>± 0.13</td><td>44</td><td>ABLIKIM</td><td>16U</td><td>BES3 e<sup>+</sup> e<sup>-</sup> at 4.599 GeV</td></tr><tr><td>1.5 ± 0.2</td><td>± 0.2</td><td>345</td><td>ABE</td><td>02C</td><td>BELL e<sup>+</sup> e<sup>-</sup> ≈ Υ(4S)</td></tr><tr><td>2.4 ± 0.6</td><td>± 0.3</td><td>54</td><td>ALEXANDER</td><td>96C</td><td>CLE2 e<sup>+</sup> e<sup>-</sup> ≈ Υ(4S)</td></tr></tbody></table>

<table><thead><tr><th>• • •</th><th>We do not use the following data for averages, fits, limits, etc.</th><th>• • •</th></tr></thead><tbody><tr><td>4.0 ± 2.7</td><td></td><td>BARLAG</td><td>90D</td><td>NA32 π<sup>-</sup> 230 GeV</td></tr></tbody></table>

$$ \Gamma(\rho K^+ K^- \text{non-}\phi) / \Gamma(\rho K^- \pi^+) \qquad \Gamma_{39/\Gamma} $$

<table><thead><tr><th>VALUE (units 10<sup>-3</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>8.4 ± 1.8</td><td>OUR AVERAGE</td><td></td><td></td><td></td></tr><tr><td>9.36 ± 2.22</td><td>± 0.71</td><td>38</td><td>ABLIKIM</td><td>16U</td><td>BES3 e<sup>+</sup> e<sup>-</sup> at 4.599 GeV</td></tr><tr><td>7 ± 2</td><td>± 2</td><td>344</td><td>ABE</td><td>02C</td><td>BELL e<sup>+</sup> e<sup>-</sup> ≈ Υ(4S)</td></tr></tbody></table>

$$ \Gamma(\rho K_S^0 K_S^0) / \Gamma(\rho K_S^0) \qquad \Gamma_{40/\Gamma_1} $$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>1.48 ± 0.08 ± 0.04</td><td>2.4k</td><td>LI</td><td>23B</td><td>BELL e<sup>+</sup> e<sup>-</sup> → Υ(nS)</td></tr></tbody></table>

$$ \Gamma(\rho \phi \pi^0) / \Gamma(\rho K^- \pi^+) \qquad \Gamma_{41/\Gamma_2} $$

<table><thead><tr><th>VALUE (units 10<sup>-3</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>1.538 ± 0.641<sup>+0.077</sup><sub>-0.100</sub></td><td></td><td>PAL</td><td>17</td><td>BELL e<sup>+</sup> e<sup>-</sup> ≈ Υ(4S), Υ(5S)</td></tr></tbody></table>

$$ \Gamma(\rho K^+ K^- \pi^0 \text{nonresonant}) / \Gamma_{\text{total}} \qquad \Gamma_{42/\Gamma} $$

<table><thead><tr><th>VALUE</th><th>CL%</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>&lt;6.3 × 10<sup>-5</sup></td><td>90</td><td>PAL</td><td>17</td><td>BELL e<sup>+</sup> e<sup>-</sup> ≈ Υ(4S), Υ(5S)</td></tr></tbody></table>
Hadronic modes with a hyperon: $S = -1$ final states

$$ \Gamma(\Lambda^{\pi+})/\Gamma_{\text{total}} \quad \Gamma_{43/\Gamma} $$

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>1.29±0.05</td><td>OUR FIT</td><td></td><td></td><td>Error includes scale factor of 1.1.</td></tr></tbody></table>

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>1.27±0.06</td><td>OUR AVERAGE</td><td></td><td></td><td></td></tr><tr><td>1.31±0.08±0.05</td><td>376</td><td>ABLIKIM</td><td>22s</td><td>BES3</td><td>e<sup>+</sup>e<sup>-</sup> at 4.612-4.699 GeV</td></tr><tr><td>1.24±0.07±0.03</td><td>706</td><td>ABLIKIM</td><td>16</td><td>BES3</td><td>e<sup>+</sup>e<sup>-</sup> → Λ<sub>c</sub>π<sub>c</sub>, 4.599 GeV</td></tr></tbody></table>

$$ \Gamma(\Lambda^{\pi+})/\Gamma(\rho K^{-}\pi^{+}) \quad \Gamma_{43/\Gamma_{2}} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.207±0.008</td><td>OUR FIT</td><td></td><td></td><td>Error includes scale factor of 1.2.</td></tr></tbody></table>

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.204±0.019</td><td>OUR AVERAGE</td><td></td><td></td><td></td></tr><tr><td>0.217±0.013±0.020</td><td>750</td><td>LINK</td><td>05F</td><td>FOCS</td><td>γ nucleus, E<sub>γ</sub> ≈ 180 GeV</td></tr><tr><td>0.18 ± 0.03 ± 0.04</td><td></td><td>ALBRECHT</td><td>92</td><td>ARG</td><td>e<sup>+</sup>e<sup>-</sup> ≈ 10.4 GeV</td></tr><tr><td>0.18 ± 0.03 ± 0.03</td><td>87</td><td>AVERY</td><td>91</td><td>CLEO</td><td>e<sup>+</sup>e<sup>-</sup> ≈ 10.5 GeV</td></tr></tbody></table>

$$ \Gamma(\Lambda(1670)^{\pi+}, \Lambda(1670) \rightarrow \eta\Lambda)/\Gamma(\rho K^{-}\pi^{+}) \quad \Gamma_{44/\Gamma_{2}} $$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>5.54±0.29±0.73</td><td>9.7k</td><td>LEE</td><td>21A</td><td>BELL</td><td>e<sup>+</sup>e<sup>-</sup> ≈ T(nS)</td></tr></tbody></table>

$$ \Gamma(\Lambda^{\pi+}\pi^{0})/\Gamma_{\text{total}} \quad \Gamma_{45/\Gamma} $$

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>7.02±0.35</td><td>OUR FIT</td><td></td><td></td><td>Error includes scale factor of 1.1.</td></tr></tbody></table>

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>7.01±0.37±0.19</td><td>1497</td><td>ABLIKIM</td><td>16</td><td>BES3</td><td>e<sup>+</sup>e<sup>-</sup> → Λ<sub>c</sub>π<sub>c</sub>, 4.599 GeV</td></tr></tbody></table>

$$ \Gamma(\Lambda^{\pi+}\pi^{0})/\Gamma(\rho K^{-}\pi^{+}) \quad \Gamma_{45/\Gamma_{2}} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>1.12±0.06</td><td>OUR FIT</td><td></td><td></td><td>Error includes scale factor of 1.1.</td></tr><tr><td>0.73±0.09±0.16</td><td>464</td><td>AVERY</td><td>94</td><td>CLE2</td><td>e<sup>+</sup>e<sup>-</sup> ≈ T(3S), T(4S)</td></tr></tbody></table>

$$ \Gamma(\Lambda^{\rho+})/\Gamma(\rho K^{-}\pi^{+}) \quad \Gamma_{46/\Gamma_{2}} $$

<table><thead><tr><th>VALUE</th><th>CL%</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>• • •</td><td></td><td></td><td></td><td>We do not use the following data for averages, fits, limits, etc.</td></tr><tr><td>&lt;0.95</td><td>95</td><td>AVERY</td><td>94</td><td>CLE2</td><td>e<sup>+</sup>e<sup>-</sup> ≈ T(3S), T(4S)</td></tr></tbody></table>

$$ \Gamma(\Lambda^{\rho+})/\Gamma(\Lambda^{\pi+}\pi^{0}) \quad \Gamma_{46/\Gamma_{5}} $$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>57.2±4.2±4.9</td><td>8.9k</td><td>ABLIKIM</td><td>22BA</td><td>BES3</td><td>e<sup>+</sup>e<sup>-</sup> at 4.6-4.7 GeV</td></tr></tbody></table>

$$ \Gamma(\Sigma(1385)^{+}\pi^{0}, \Sigma^{+} \rightarrow \Lambda^{\pi+})/\Gamma(\Lambda^{\pi+}\pi^{0}) \quad \Gamma_{47/\Gamma_{5}} $$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>7.18±0.60±0.64</td><td>8.9k</td><td>ABLIKIM</td><td>22BA</td><td>BES3</td><td>e<sup>+</sup>e<sup>-</sup> at 4.6-4.7 GeV</td></tr></tbody></table>

$$ \Gamma(\Sigma(1385)^{0}\pi^{+}, \Sigma^{0} \rightarrow \Lambda^{\pi^{0}})/\Gamma(\Lambda^{\pi^{+}}\pi^{0}) \quad \Gamma_{48/\Gamma_{5}} $$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>7.92±0.72±0.80</td><td>8.9k</td><td>ABLIKIM</td><td>22BA</td><td>BES3</td><td>e<sup>+</sup>e<sup>-</sup> at 4.6-4.7 GeV</td></tr></tbody></table>

$$ \Gamma(\Lambda^{\pi-2\pi^{+}})/\Gamma_{\text{total}} \quad \Gamma_{49/\Gamma} $$

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>3.61±0.26</td><td>OUR FIT</td><td></td><td></td><td>Error includes scale factor of 1.4.</td></tr></tbody></table>

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>3.81±0.24±0.18</td><td>609</td><td>ABLIKIM</td><td>16</td><td>BES3</td><td>e<sup>+</sup>e<sup>-</sup> → Λ<sub>c</sub>π<sub>c</sub>, 4.599 GeV</td></tr></tbody></table>

$$ \Gamma(\Lambda^{\pi-2\pi^{+}})/\Gamma(\rho K^{-}\pi^{+}) \quad \Gamma_{49/\Gamma_{2}} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.58 ± 0.04</td><td>OUR FIT</td><td></td><td></td><td>Error includes scale factor of 1.8.</td></tr></tbody></table>

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.522±0.032</td><td>OUR AVERAGE</td><td></td><td></td><td></td></tr><tr><td>0.508±0.024±0.024</td><td>1356</td><td>LINK</td><td>05F</td><td>FOCS</td><td>γ nucleus, E<sub>γ</sub> ≈ 180 GeV</td></tr><tr><td>0.65 ± 0.11 ± 0.12</td><td>289</td><td>AVERY</td><td>91</td><td>CLEO</td><td>e<sup>+</sup>e<sup>-</sup> 10.5 GeV</td></tr><tr><td>0.82 ± 0.29 ± 0.27</td><td>44</td><td>ANJOS</td><td>90</td><td>E691</td><td>γ Be 70-260 GeV</td></tr><tr><td>0.94 ± 0.41 ± 0.13</td><td>10</td><td>BARLAG</td><td>90D</td><td>NA32</td><td>π<sup>-</sup> 230 GeV</td></tr><tr><td>0.61 ± 0.16 ± 0.04</td><td>105</td><td>ALBRECHT</td><td>88C</td><td>ARG</td><td>e<sup>+</sup>e<sup>-</sup> 10 GeV</td></tr></tbody></table>

$$ \Gamma(\Sigma(1385)^{+}\pi^{+}\pi^{-}, \Sigma^{*+} \rightarrow \Lambda^{\pi+})/\Gamma(\Lambda^{\pi-2\pi^{+}}) \quad \Gamma_{50/\Gamma_{49}} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.28±0.10±0.08</td><td></td><td>LINK</td><td>05F</td><td>FOCS</td><td>γ nucleus, E<sub>γ</sub> ≈ 180 GeV</td></tr></tbody></table>

$$ \Gamma(\Sigma(1385)^{-2\pi^{+}}, \Sigma^{*-} \rightarrow \Lambda^{\pi^{-}})/\Gamma(\Lambda^{\pi-2\pi^{+}}) \quad \Gamma_{51/\Gamma_{49}} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.21±0.03±0.02</td><td></td><td>LINK</td><td>05F</td><td>FOCS</td><td>γ nucleus, E<sub>γ</sub> ≈ 180 GeV</td></tr></tbody></table>

$$ \Gamma(\Lambda^{\pi+}\rho^{0})/\Gamma(\Lambda^{\pi-2\pi^{+}}) \quad \Gamma_{52/\Gamma_{49}} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.40±0.12±0.12</td><td></td><td>LINK</td><td>05F</td><td>FOCS</td><td>γ nucleus, E<sub>γ</sub> ≈ 180 GeV</td></tr></tbody></table>

$$ \Gamma(\Sigma(1385)^{+}\rho^{0}, \Sigma^{*+} \rightarrow \Lambda^{\pi+})/\Gamma(\Lambda^{\pi-2\pi^{+}}) \quad \Gamma_{53/\Gamma_{49}} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.14±0.09±0.07</td><td></td><td>LINK</td><td>05F</td><td>FOCS</td><td>γ nucleus, E<sub>γ</sub> ≈ 180 GeV</td></tr></tbody></table>

$$ \Gamma(\Lambda^{\pi-2\pi^{+}}\text{nonresonant})/\Gamma(\Lambda^{\pi-2\pi^{+}}) \quad \Gamma_{54/\Gamma_{49}} $$

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>&lt;0.3</td><td>90</td><td>LINK</td><td>05F</td><td>FOCS</td><td>γ nucleus, E<sub>γ</sub> ≈ 180 GeV</td></tr></tbody></table>

$$ \Gamma(\Lambda^{\pi-\pi^{0}2\pi^{+}})/\Gamma(\rho K^{-}\pi^{+}) \quad \Gamma_{55/\Gamma_{2}} $$

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.36±0.09±0.09</td><td>50</td><td>1 CRONIN-HEN..03</td><td>CLE3</td><td>e<sup>+</sup>e<sup>-</sup> ≈ T(4S)</td></tr></tbody></table>

¹CRONIN-HENNESSY 03 finds this channel to be dominantly Ληπ+ and Λωπ+; see below.

$$ \Gamma(\Lambda^{\pi+\eta})/\Gamma_{\text{total}} \quad \Gamma_{56/\Gamma} $$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>1.84±0.11</td><td>OUR FIT</td><td></td><td></td><td>Error includes scale factor of 1.1.</td></tr></tbody></table>

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>1.84±0.21±0.15</td><td>154</td><td>ABLIKIM</td><td>19Y</td><td>BES3</td><td>e<sup>+</sup>e<sup>-</sup> at 4.6 GeV</td></tr></tbody></table>

$$ \Gamma(\Lambda^{\pi+\eta})/\Gamma(\rho K^{-}\pi^{+}) \quad \Gamma_{56/\Gamma_{2}} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.295±0.014</td><td>OUR FIT</td><td></td><td></td><td></td></tr><tr><td>0.295±0.014</td><td>OUR AVERAGE</td><td></td><td></td><td></td></tr><tr><td>0.293±0.003±0.014</td><td>51k</td><td>LEE</td><td>21A</td><td>BELL</td><td>e<sup>+</sup>e<sup>-</sup> ≈ T(nS)</td></tr><tr><td>0.41 ± 0.17 ± 0.10</td><td>11</td><td>CRONIN-HEN..03</td><td>CLE3</td><td>CLE2</td><td>e<sup>+</sup>e<sup>-</sup> ≈ T(4S)</td></tr><tr><td>0.35 ± 0.05 ± 0.06</td><td>116</td><td>AMMAR</td><td>95</td><td>CLE2</td><td>e<sup>+</sup>e<sup>-</sup> ≈ T(4S)</td></tr></tbody></table>

$$ \Gamma(\Sigma(1385)^{+}\eta)/\Gamma_{\text{total}} \quad \Gamma_{57/\Gamma} $$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.91±0.18±0.09</td><td>54</td><td>ABLIKIM</td><td>19Y</td><td>BES3</td><td>e<sup>+</sup>e<sup>-</sup> at 4.6 GeV</td></tr></tbody></table>

$$ \Gamma(\Sigma(1385)^{+}\eta)/\Gamma(\rho K^{-}\pi^{+}) \quad \Gamma_{57/\Gamma_{2}} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.190±0.016</td><td>OUR AVERAGE</td><td></td><td></td><td></td></tr><tr><td>0.192±0.006±0.016</td><td>29k</td><td>LEE</td><td>21A</td><td>BELL</td><td>e<sup>+</sup>e<sup>-</sup> ≈ T(nS)</td></tr><tr><td>0.17 ± 0.04 ± 0.03</td><td>54</td><td>AMMAR</td><td>95</td><td>CLE2</td><td>e<sup>+</sup>e<sup>-</sup> ≈ T(4S)</td></tr></tbody></table>

$$ \Gamma(\Lambda^{\pi+\omega})/\Gamma(\rho K^{-}\pi^{+}) \quad \Gamma_{58/\Gamma_{2}} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.24±0.06±0.06</td><td>32</td><td>CRONIN-HEN..03</td><td>CLE3</td><td>e<sup>+</sup>e<sup>-</sup> ≈ T(4S)</td></tr></tbody></table>

$$ \Gamma(\Lambda^{\pi-\pi^{0}2\pi^{+}}, \text{no } \eta \text{ or } \omega)/\Gamma(\rho K^{-}\pi^{+}) \quad \Gamma_{59/\Gamma_{2}} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>&lt;0.13</td><td>90</td><td>CRONIN-HEN..03</td><td>CLE3</td><td>e<sup>+</sup>e<sup>-</sup> ≈ T(4S)</td></tr></tbody></table>

$$ \Gamma(\Lambda^{K^{+}\bar{K}^{0}})/\Gamma(\rho K^{-}\pi^{+}) \quad \Gamma_{60/\Gamma_{2}} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.090±0.017</td><td>OUR FIT</td><td></td><td></td><td>Error includes scale factor of 1.9.</td></tr></tbody></table>

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.131±0.020</td><td>OUR AVERAGE</td><td></td><td></td><td></td></tr><tr><td>0.142±0.018±0.022</td><td>251</td><td>LINK</td><td>05F</td><td>FOCS</td><td>γ nucleus, E<sub>γ</sub> ≈ 180 GeV</td></tr><tr><td>0.12 ± 0.02 ± 0.02</td><td>59</td><td>AMMAR</td><td>95</td><td>CLE2</td><td>e<sup>+</sup>e<sup>-</sup> ≈ T(4S)</td></tr></tbody></table>

$$ \Gamma(\Lambda^{K^{+}\bar{K}^{0}})/\Gamma(\Lambda^{\pi+\pi^{0}}) \quad \Gamma_{60/\Gamma_{43}} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.44 ± 0.08</td><td>OUR FIT</td><td></td><td></td><td>Error includes scale factor of 2.0.</td></tr><tr><td>0.395±0.026±0.036</td><td>460 ± 30</td><td>AUBERT</td><td>07U</td><td>BABR</td><td>e<sup>+</sup>e<sup>-</sup> ≈ T(4S)</td></tr></tbody></table>

$$ \Gamma(\Xi(1690)^{0}\pi^{+}, \Xi^{*0} \rightarrow \Lambda^{K^{0}})/\Gamma(\Lambda^{K^{+}\bar{K}^{0}}) \quad \Gamma_{61/\Gamma_{60}} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.28±0.07</td><td>OUR AVERAGE</td><td></td><td></td><td></td></tr><tr><td>0.32±0.10±0.04</td><td>84±24</td><td>LINK</td><td>05F</td><td>FOCS</td><td>γ nucleus, E<sub>γ</sub> ≈ 180 GeV</td></tr><tr><td>0.26±0.08±0.03</td><td>93</td><td>ABE</td><td>02C</td><td>BELL</td><td>e<sup>+</sup>e<sup>-</sup> ≈ T(4S)</td></tr></tbody></table>

$$ \Gamma(\Sigma^{0}\pi^{+})/\Gamma_{\text{total}} \quad \Gamma_{62/\Gamma} $$

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>1.27±0.06</td><td>OUR FIT</td><td></td><td></td><td>Error includes scale factor of 1.1.</td></tr></tbody></table>

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>1.22±0.08±0.07</td><td>343</td><td>ABLIKIM</td><td>22s</td><td>BES3</td><td>e<sup>+</sup>e<sup>-</sup> at 4.612-4.699 GeV</td></tr><tr><td>1.27±0.08±0.03</td><td>522</td><td>ABLIKIM</td><td>16</td><td>BES3</td><td>e<sup>+</sup>e<sup>-</sup> → Λ<sub>c</sub>π<sub>c</sub>, 4.599 GeV</td></tr></tbody></table>

$$ \Gamma(\Sigma^{0}\pi^{+})/\Gamma(\rho K^{-}\pi^{+}) \quad \Gamma_{62/\Gamma_{2}} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.204±0.010</td><td>OUR FIT</td><td></td><td></td><td>Error includes scale factor of 1.2.</td></tr></tbody></table>

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.21 ± 0.02 ± 0.04</td><td>196</td><td>AVERY</td><td>94</td><td>CLE2</td><td>e<sup>+</sup>e<sup>-</sup> ≈ T(3S), T(4S)</td></tr><tr><td>0.17 ± 0.06 ± 0.04</td><td>93</td><td>ALBRECHT</td><td>92</td><td>ARG</td><td>e<sup>+</sup>e<sup>-</sup> ≈ 10.4 GeV</td></tr></tbody></table>

$$ \Gamma(\Sigma^{0}\pi^{+})/\Gamma(\Lambda^{\pi+\pi^{0}}) \quad \Gamma_{62/\Gamma_{43}} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.99 ± 0.04</td><td>OUR FIT</td><td></td><td></td><td></td></tr><tr><td>0.98 ± 0.05</td><td>OUR AVERAGE</td><td></td><td></td><td></td></tr></tbody></table>

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.977±0.015±0.051</td><td>33k</td><td>AUBERT</td><td>07U</td><td>BABR</td><td>e<sup>+</sup>e<sup>-</sup> ≈ T(4S)</td></tr><tr><td>1.09 ± 0.11 ± 0.19</td><td>750</td><td>LINK</td><td>05F</td><td>FOCS</td><td>γ nucleus, E<sub>γ</sub> ≈ 180 GeV</td></tr></tbody></table>

$$ \Gamma(\Sigma^{0}\pi^{+}\eta)/\Gamma(\rho K^{-}\pi^{+}) \quad \Gamma_{63/\Gamma_{2}} $$

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.120±0.006±0.010</td><td>17k</td><td>LEE</td><td>21A</td><td>BELL</td><td>e<sup>+</sup>e<sup>-</sup> ≈ T(nS)</td></tr></tbody></table>

$$ \Gamma(\Sigma^{0}\pi^{0})/\Gamma_{\text{total}} \quad \Gamma_{64/\Gamma} $$

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>1.24±0.09</td><td>OUR FIT</td><td></td><td></td><td></td></tr><tr><td>1.18±0.10±0.03</td><td>309</td><td>ABLIKIM</td><td>16</td><td>BES3</td><td>e<sup>+</sup>e<sup>-</sup> → Λ<sub>c</sub>π<sub>c</sub>, 4.599 GeV</td></tr></tbody></table>
$$ \Gamma(\Sigma^+\pi^0)/\Gamma(\rho K^-\pi^+) \qquad \Gamma_{64}/\Gamma_2 $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>0.200±0.015</td><td>OUR FIT</td></tr><tr><td>0.20 ±0.03</td><td>±0.03</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>KUBOTA</td><td>93</td><td>CLE2</td></tr></tbody></table>

$$ \Gamma(\Sigma^+\eta)/\Gamma(\rho K^-\pi^+) \qquad \Gamma_{65}/\Gamma_2 $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>0.11±0.03±0.02</td><td>26</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>AMMAR</td><td>95</td><td>CLE2</td></tr></tbody></table>

$$ \Gamma(\Sigma^+\eta)/\Gamma(\Sigma^+\pi^0) \qquad \Gamma_{65}/\Gamma_{64} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>0.254±0.031</td><td>OUR AVERAGE</td></tr><tr><td>0.25 ±0.03</td><td>±0.01</td></tr><tr><td>0.35 ±0.16</td><td>±0.02</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>LI</td><td>23A</td><td>BELL</td></tr><tr><td>1</td><td>19x</td><td>BES3</td></tr></tbody></table>

1 ABLIKIM 19x report evidence for the observation of the decay Λ<sup>+</sup><sub>c</sub> → Σ<sup>+</sup>η at 2.5σ significance.

$$ \Gamma(\Sigma^+\eta')/\Gamma(\Sigma^+\pi^0) \qquad \Gamma_{66}/\Gamma_{64} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>0.33±0.06±0.02</td><td>300</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>LI</td><td>23A</td><td>BELL</td></tr></tbody></table>

$$ \Gamma(\Sigma^+\eta')/\Gamma(\Sigma^+\omega) \qquad \Gamma_{66}/\Gamma_{73} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>0.86±0.34±0.04</td><td>13</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>1</td><td>19x</td><td>BES3</td></tr></tbody></table>

1 ABLIKIM 19x report evidence for the observation of the decay Λ<sup>+</sup><sub>c</sub> → Σ<sup>+</sup>η' at 3.2σ significance.

$$ \Gamma(\Sigma^+\pi^+\pi^-)/\Gamma_{\text{total}} \qquad \Gamma_{67}/\Gamma $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

<table><thead><tr><th>4.47±0.22</th><th>OUR FIT</th><th>Error includes scale factor of 1.2.</th></tr></thead><tbody><tr><td>4.25±0.24±0.20</td><td>1156</td><td>ABLIKIM 16 BES3</td></tr></tbody></table>

$$ \Gamma(\Sigma^+\pi^+\pi^-)/\Gamma(\rho K^-\pi^+) \qquad \Gamma_{67}/\Gamma_2 $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>0.716±0.019</td><td>OUR FIT</td></tr><tr><td>0.720±0.024</td><td>OUR AVERAGE</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

<table><thead><tr><th>0.719±0.003±0.024</th><th>2.7M</th><th>BERGER</th><th>18</th><th>BELL</th><th>e<sup>+</sup>e<sup>-</sup> ≈ T(4S)</th></tr><tr><th>0.74 ±0.07</th><th>±0.09</th><th>KUBOTA</th><th>93</th><th>CLE2</th><th>e<sup>+</sup>e<sup>-</sup> ≈ T(4S)</th></tr></thead><tbody><tr><td>0.72 ±0.14</td><td>47 ±9</td><td>VAZQUEZ-JA...</td><td>08</td><td>SELX</td><td>Σ<sup>-</sup> nucleus, 600 GeV</td></tr><tr><td>0.54<sup>+0.18</sup><sub>-0.15</sub></td><td>11</td><td>BARLAG</td><td>92</td><td>NA32</td><td>π<sup>-</sup> Cu 230 GeV</td></tr></tbody></table>

<table><thead><tr><th colspan="2">• • • We do not use the following data for averages, fits, limits, etc. • • •</th></tr></thead><tbody><tr><td>0.72 ±0.14</td><td>47 ±9</td><td>VAZQUEZ-JA...</td><td>08</td><td>SELX</td><td>Σ<sup>-</sup> nucleus, 600 GeV</td></tr><tr><td>0.54<sup>+0.18</sup><sub>-0.15</sub></td><td>11</td><td>BARLAG</td><td>92</td><td>NA32</td><td>π<sup>-</sup> Cu 230 GeV</td></tr></tbody></table>

$$ \Gamma(\Sigma^+\rho^0)/\Gamma(\rho K^-\pi^+) \qquad \Gamma_{68}/\Gamma_2 $$

<table><thead><tr><th>VALUE</th><th>CL%</th></tr></thead><tbody><tr><td>&lt;0.27</td><td>95</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>KUBOTA</td><td>93</td><td>CLE2</td></tr></tbody></table>

$$ \Gamma(\Sigma^-2\pi^+)/\Gamma_{\text{total}} \qquad \Gamma_{69}/\Gamma $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>1.86±0.18</td><td>OUR FIT</td></tr><tr><td>1.81±0.17±0.09</td><td>161</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>ABLIKIM</td><td>17Y</td><td>BES3</td></tr></tbody></table>

$$ \Gamma(\Sigma^-2\pi^+)/\Gamma(\rho K^-\pi^+) \qquad \Gamma_{69}/\Gamma_2 $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>0.299±0.030</td><td>OUR FIT</td></tr><tr><td>0.314±0.067</td><td>30 ±6</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>VAZQUEZ-JA...</td><td>08</td><td>SELX</td></tr></tbody></table>

$$ \Gamma(\Sigma^-2\pi^+)/\Gamma(\Sigma^+\pi^+\pi^-) \qquad \Gamma_{69}/\Gamma_{67} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>0.42±0.04</td><td>OUR FIT</td></tr><tr><td>0.53±0.15±0.07</td><td>56</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>FRABETTI</td><td>94E</td><td>E687</td></tr></tbody></table>

$$ \Gamma(\Sigma^0\pi^+\pi^0)/\Gamma(\rho K^-\pi^+) \qquad \Gamma_{70}/\Gamma_2 $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

<table><thead><tr><th>0.56 ±0.05</th><th>OUR AVERAGE</th><th>Error includes scale factor of 1.5.</th></tr></thead><tbody><tr><td>0.575±0.005±0.036</td><td>2.7M</td><td>BERGER</td><td>18</td><td>BELL</td><td>e<sup>+</sup>e<sup>-</sup> ≈ T(4S)</td></tr><tr><td>0.36 ±0.09</td><td>±0.10</td><td>117</td><td>AVERY</td><td>94</td><td>CLE2</td><td>e<sup>+</sup>e<sup>-</sup> ≈ T(3S), T(4S)</td></tr></tbody></table>

$$ \Gamma(\Sigma^+\pi^0\pi^0)/\Gamma(\rho K^-\pi^+) \qquad \Gamma_{71}/\Gamma_2 $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>0.247±0.006±0.019</td><td>925k</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>BERGER</td><td>18</td><td>BELL</td></tr></tbody></table>

$$ \Gamma(\Sigma^0\pi^-2\pi^+)/\Gamma(\rho K^-\pi^+) \qquad \Gamma_{72}/\Gamma_2 $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>0.18±0.05</td><td>OUR FIT</td></tr><tr><td>0.21±0.05±0.05</td><td>90</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>EVERY</td><td>94</td><td>CLE2</td></tr></tbody></table>

$$ \Gamma(\Sigma^0\pi^-2\pi^+)/\Gamma(\Lambda\pi^-2\pi^+) \qquad \Gamma_{72}/\Gamma_{49} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>0.31±0.08</td><td>OUR FIT</td></tr><tr><td>0.26±0.06±0.09</td><td>480</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>LINK</td><td>05F</td><td>FOCS</td><td>γ nucleus, E<sub>γ</sub> ≈ 180 GeV</td></tr></tbody></table>

$$ \Gamma(\Sigma^+\omega)/\Gamma_{\text{total}} \qquad \Gamma_{73}/\Gamma $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>1.69±0.20</td><td>OUR FIT</td></tr><tr><td>1.56±0.20±0.07</td><td>157</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>ABLIKIM</td><td>16</td><td>BES3</td></tr></tbody></table>

$$ \Gamma(\Sigma^+\omega)/\Gamma(\rho K^-\pi^+) \qquad \Gamma_{73}/\Gamma_2 $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>0.271±0.031</td><td>OUR FIT</td></tr><tr><td>0.54 ±0.13</td><td>±0.06</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>KUBOTA</td><td>93</td><td>CLE2</td></tr></tbody></table>

$$ \Gamma(\Sigma^-\pi^02\pi^+)/\Gamma_{\text{total}} \qquad \Gamma_{74}/\Gamma $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>2.11±0.33±0.14</td><td>88</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>ABLIKIM</td><td>17Y</td><td>BES3</td></tr></tbody></table>

$$ \Gamma(\Sigma^+K^+K^-)/\Gamma(\rho K^-\pi^+) \qquad \Gamma_{75}/\Gamma_2 $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>0.057±0.005</td><td>OUR FIT</td></tr><tr><td>0.070±0.011±0.011</td><td>59</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>AVERY</td><td>93</td><td>CLE2</td></tr></tbody></table>

$$ \Gamma(\Sigma^+K^+K^-)/\Gamma(\Sigma^+\pi^+\pi^-) \qquad \Gamma_{75}/\Gamma_{67} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

8.0 ±0.7 OUR FIT

7.8 ±0.7 OUR AVERAGE

<table><thead><tr><th>8.38±0.93±0.44</th><th>110</th><th>ABLIKIM</th><th>23BY BES3</th><th>e<sup>+</sup>e<sup>-</sup> at 4.600-4.699 GeV</th></tr></thead><tbody><tr><td>7.6 ±0.7</td><td>±0.9</td><td>246</td><td>02C BELL</td><td>e<sup>+</sup>e<sup>-</sup> ≈ T(4S)</td></tr><tr><td>7.1 ±1.1</td><td>±1.1</td><td>103</td><td>LINK</td><td>γ nucleus, ≈ 180 GeV</td></tr></tbody></table>

$$ \Gamma(\Sigma^+K^+K^-(\text{non-}\phi))/\Gamma(\Sigma^+\pi^+\pi^-) \qquad \Gamma_{76}/\Gamma_{67} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

<table><thead><tr><th colspan="2">• • • We do not use the following data for averages, fits, limits, etc. • • •</th></tr></thead><tbody><tr><td>4.38±0.79±0.21</td><td>75</td><td>1 ABLIKIM</td><td>23BY BES3</td><td>e<sup>+</sup>e<sup>-</sup> at 4.600-4.699 GeV</td></tr></tbody></table>

1 We do not include this measurement in our average because it is highly correlated to the relative branching fractions B(Λ<sub>c</sub> → Σ<sup>+</sup>K<sup>+</sup>K<sup>-</sup>) / B(Λ<sub>c</sub> → Σ<sup>+</sup>π<sup>+</sup>π<sup>-</sup>) and B(Λ<sub>c</sub> → Σ<sup>+</sup>φ) / B(Λ<sub>c</sub> → Σ<sup>+</sup>π<sup>+</sup>π<sup>-</sup>) measured in the same analysis (which we do use). Although the measurements are done on the same data, ABLIKIM 23BY do not obtain exactly B(Λ<sub>c</sub> → Σ<sup>+</sup>φ)·B(φ → K<sup>+</sup>K<sup>-</sup>) / B(Λ<sub>c</sub> → Σ<sup>+</sup>π<sup>+</sup>π<sup>-</sup>) + B(Λ<sub>c</sub><sup>+</sup> → Σ<sup>+</sup>K<sup>+</sup>K<sup>-</sup>(non-φ)) / B(Λ<sub>c</sub> → Σ<sup>+</sup>π<sup>+</sup>π<sup>-</sup>) = B(Λ<sub>c</sub> → Σ<sup>+</sup>K<sup>+</sup>K<sup>-</sup>) / B(Λ<sub>c</sub> → Σ<sup>+</sup>π<sup>+</sup>π<sup>-</sup>).

$$ \Gamma(\Sigma^+\phi)/\Gamma(\rho K^-\pi^+) \qquad \Gamma_{77}/\Gamma_2 $$

Unseen decay modes of the φ are included.

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>0.063±0.007</td><td>OUR FIT</td></tr><tr><td>0.069±0.023±0.016</td><td>26</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>AVERY</td><td>93</td><td>CLE2</td></tr></tbody></table>

$$ \Gamma(\Sigma^+\phi)/\Gamma(\Sigma^+\pi^+\pi^-) \qquad \Gamma_{77}/\Gamma_{67} $$

Unseen decay modes of the φ are included.

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

8.8±1.0 OUR FIT

8.8±1.0 OUR AVERAGE

<table><thead><tr><th>9.2±1.8±0.7</th><th>119</th><th>ABLIKIM</th><th>23BY BES3</th><th>e<sup>+</sup>e<sup>-</sup> at 4.600-4.699 GeV</th></tr></thead><tbody><tr><td>8.5±1.2±1.2</td><td>129</td><td>ABE</td><td>02C BELL</td><td>e<sup>+</sup>e<sup>-</sup> ≈ T(4S)</td></tr><tr><td>8.7±1.6±0.6</td><td>57</td><td>LINK</td><td>02G FOCS</td><td>γ nucleus, ≈ 180 GeV</td></tr></tbody></table>

$$ \Gamma(\Xi(1690)^0K^+, \Xi^*0 \rightarrow \Sigma^+K^-)/\Gamma(\Sigma^+\pi^+\pi^-) \qquad \Gamma_{78}/\Gamma_{67} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

0.023±0.005 OUR AVERAGE

0.023±0.005±0.005

<table><thead><tr><th>0.022±0.006±0.006</th><th>34</th><th>LINK</th><th>02G FOCS</th><th>γ nucleus, ≈ 180 GeV</th></tr></thead><tbody><tr><td>0.022±0.006±0.006</td><td>34</td><td>LINK</td><td>02G FOCS</td><td>γ nucleus, ≈ 180 GeV</td></tr></tbody></table>

$$ \Gamma(\Sigma^+K^+K^-(\text{nonresonant}))/\Gamma(\Sigma^+\pi^+\pi^-) \qquad \Gamma_{79}/\Gamma_{67} $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>&lt;0.018</td><td>90</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>ABE</td><td>02C BELL</td><td>e<sup>+</sup>e<sup>-</sup> ≈ T(4S)</td></tr></tbody></table>

<table><thead><tr><th colspan="2">• • • We do not use the following data for averages, fits, limits, etc. • • •</th></tr></thead><tbody><tr><td>&lt;0.028</td><td>90</td><td>LINK</td><td>02G FOCS</td><td>γ nucleus, ≈ 180 GeV</td></tr></tbody></table>

$$ \Gamma(\Xi^0K^+)/\Gamma_{\text{total}} \qquad \Gamma_{80}/\Gamma $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

5.5 ±0.7 OUR FIT

5.90±0.86±0.39

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>0.86±0.012</td><td>OUR FIT</td></tr><tr><td>0.078±0.013±0.013</td><td>56</td></tr></tbody></table>

0.088±0.012 OUR FIT

0.078±0.013±0.013

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

0.078±0.013±0.013

0.078±0.013±0.013

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>EVERY</td><td>93</td><td>CLE2</td></tr></tbody></table>

$$ \Gamma(\Xi^-K^+\pi^+)/\Gamma(\rho K^-\pi^+) \qquad \Gamma_{81}/\Gamma_2 $$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead></table>

0.099±0.009 OUR FIT

Error includes scale factor of 1.1.

<table><thead><tr><th>0.098±0.021</th><th>OUR AVERAGE</th><th>Error includes scale factor of 1.3.</th><th>See the ideogram below.</th></tr></thead><tbody><tr><td>0.14 ±0.03</td><td>±0.02</td><td>34</td><td>ALBRECHT 95B ARG</td><td>e<sup>+</sup>e<sup>-</sup> ≈ 10.4 GeV</td></tr></tbody></table>
# Baryon Particle Listings

## $Λ_c^+$

<table><tr><td>0.079 ± 0.013 ± 0.014</td><td>60</td><td>AVERY</td><td>93</td><td>CLE2</td><td>e<sup>+</sup> e<sup>-</sup> ≈ 10.5 GeV</td></tr><tr><td>0.15 ± 0.04 ± 0.03</td><td>30</td><td>AVERY</td><td>91</td><td>CLEO</td><td>e<sup>+</sup> e<sup>-</sup> ≈ 10.5 GeV</td></tr></table>

WEIGHTED AVERAGE
0.098±0.021 (Error scaled by 1.3)

<figure><img src="image_737.png" /></figure>

Values above of weighted average, error, and scale factor are based upon the data in this ideogram only. They are not necessarily the same as our best values, obtained from a least-squares constrained fit utilizing measurements of other (related) quantities as additional information.

<table><tr><td>Γ(Ξ<sup>-</sup> K<sup>+</sup>π<sup>+</sup>)/Γ(Λπ<sup>+</sup>)</td><td>Γ<sub>81</sub>/Γ<sub>43</sub></td></tr><tr><td>VALUE</td><td>EVTS</td></tr><tr><td>0.48 ± 0.04 OUR FIT</td><td></td></tr><tr><td>0.480 ± 0.016 ± 0.039</td><td>2665 ± 84</td></tr></table>

<table><tr><td>Γ(Ξ(1530)<sup>0</sup> K<sup>+</sup>)/Γ<sub>total</sub></td><td>Γ<sub>82</sub>/Γ</td></tr><tr><td>VALUE (units 10<sup>-3</sup>)</td><td>EVTS</td></tr><tr><td>4.3 ± 0.9 OUR FIT</td><td>Error includes scale factor of 1.1.</td></tr><tr><td>5.02 ± 0.99 ± 0.31</td><td>60 ABLIKIM 18Y BES3</td></tr></table>

<table><tr><td>Γ(Ξ(1530)<sup>0</sup> K<sup>+</sup>)/Γ(ρK<sup>-</sup>π<sup>+</sup>)</td><td>Γ<sub>82</sub>/Γ<sub>2</sub></td></tr><tr><td>VALUE</td><td>EVTS</td></tr><tr><td>0.068 ± 0.014 OUR FIT</td><td>Error includes scale factor of 1.1.</td></tr><tr><td>0.053 ± 0.016 ± 0.010</td><td>24 AVERY 93 CLE2</td></tr><tr><td>• • • We do not use the following data for averages, fits, limits, etc.</td><td>• • •</td></tr><tr><td>0.05 ± 0.02 ± 0.01</td><td>11 ALBRECHT 95B ARG</td></tr><tr><td></td><td>e<sup>+</sup> e<sup>-</sup> ≈ 10.4 GeV</td></tr></table>

### Hadronic modes with a hyperon: S = 0 final states

<table><tr><td>Γ(ΛK<sup>+</sup>)/Γ(Λπ<sup>+</sup>)</td><td>Γ<sub>83</sub>/Γ<sub>43</sub></td></tr><tr><td>VALUE (units 10<sup>-2</sup>)</td><td>EVTS</td></tr><tr><td>4.96 ± 0.14 OUR AVERAGE</td><td></td></tr><tr><td>5.05 ± 0.13 ± 0.09</td><td>11k LI</td></tr><tr><td>4.78 ± 0.34 ± 0.20</td><td>ABLIKIM</td></tr><tr><td>4.4 ± 0.4 ± 0.3</td><td>1.1k AUBERT</td></tr><tr><td>7.4 ± 1.0 ± 1.2</td><td>265 ABE</td></tr><tr><td></td><td>02C BELL</td></tr><tr><td></td><td>e<sup>+</sup> e<sup>-</sup> ≈ Υ(4S)</td></tr></table>

<table><tr><td>Γ(ΛK<sup>+</sup>π<sup>-</sup>π<sup>-</sup>)/Γ(Λπ<sup>+</sup>)</td><td>Γ<sub>84</sub>/Γ<sub>43</sub></td></tr><tr><td>VALUE</td><td>CL%</td></tr><tr><td>&lt;4.1 × 10<sup>-2</sup></td><td>90 AUBERT</td></tr><tr><td></td><td>07U BABR</td></tr><tr><td></td><td>e<sup>+</sup> e<sup>-</sup> ≈ Υ(4S)</td></tr></table>

<table><tr><td>Γ(Σ<sup>0</sup> K<sup>+</sup>)/Γ(Σ<sup>0</sup> π<sup>+</sup>)</td><td>Γ<sub>85</sub>/Γ<sub>62</sub></td></tr><tr><td>VALUE (units 10<sup>-2</sup>)</td><td>EVTS</td></tr><tr><td>2.90 ± 0.21 OUR AVERAGE</td><td>Error includes scale factor of 1.4. See the ideogram below.</td></tr><tr><td>2.78 ± 0.15 ± 0.05</td><td>2.4k LI</td></tr><tr><td>3.61 ± 0.73 ± 0.05</td><td>43 ABLIKIM</td></tr><tr><td>3.8 ± 0.5 ± 0.3</td><td>366 ± 52 AUBERT</td></tr><tr><td>5.6 ± 1.4 ± 0.8</td><td>75 ABE</td></tr><tr><td></td><td>02C BELL</td></tr><tr><td></td><td>e<sup>+</sup> e<sup>-</sup> ≈ Υ(4S)</td></tr></table>

WEIGHTED AVERAGE
2.90±0.21 (Error scaled by 1.4)

<figure><img src="image_738.png" /></figure>

<table><tr><td>Γ(Σ<sup>+</sup> K<sup>0</sup><sub>S</sub>)/Γ(Σ<sup>+</sup> π<sup>+</sup> π<sup>-</sup>)</td><td>Γ<sub>86</sub>/Γ<sub>67</sub></td></tr><tr><td>VALUE (units 10<sup>-2</sup>)</td><td>EVTS</td></tr><tr><td>1.06 ± 0.31 ± 0.04</td><td>44 ABLIKIM</td></tr><tr><td></td><td>22AK BES3</td></tr><tr><td></td><td>e<sup>+</sup> e<sup>-</sup> at 4.178-4.226 GeV</td></tr></table>

<table><tr><td>Γ(Σ<sup>0</sup> K<sup>+</sup> π<sup>+</sup> π<sup>-</sup>)/Γ(Σ<sup>0</sup> π<sup>+</sup>)</td><td>Γ<sub>87</sub>/Γ<sub>62</sub></td></tr><tr><td>VALUE</td><td>CL%</td></tr><tr><td>&lt;2.0 × 10<sup>-2</sup></td><td>90 AUBERT</td></tr><tr><td></td><td>07U BABR</td></tr><tr><td></td><td>e<sup>+</sup> e<sup>-</sup> ≈ Υ(4S)</td></tr></table>

<table><tr><td>Γ(Σ<sup>+</sup> K<sup>+</sup> π<sup>-</sup>)/Γ(Σ<sup>+</sup> π<sup>+</sup> π<sup>-</sup>)</td><td>Γ<sub>88</sub>/Γ<sub>67</sub></td></tr><tr><td>VALUE (units 10<sup>-2</sup>)</td><td>EVTS</td></tr><tr><td>4.5 ± 0.5 OUR AVERAGE</td><td></td></tr><tr><td>4.44 ± 0.52 ± 0.25</td><td>224 ABLIKIM</td></tr><tr><td>4.7 ± 1.1 ± 0.8</td><td>105 ABE</td></tr><tr><td></td><td>02C BELL</td></tr><tr><td></td><td>e<sup>+</sup> e<sup>-</sup> at 4.600-4.699 GeV</td></tr><tr><td></td><td>e<sup>+</sup> e<sup>-</sup> ≈ Υ(4S)</td></tr></table>

<table><tr><td>Γ(Σ<sup>+</sup> K<sup>*</sup>(892)<sup>0</sup>)/Γ(Σ<sup>+</sup> π<sup>+</sup> π<sup>-</sup>)</td><td>Γ<sub>89</sub>/Γ<sub>67</sub></td></tr><tr><td colspan="2">Unseen decay modes of the K<sup>*</sup>(892)<sup>0</sup> are included.</td></tr><tr><td>VALUE</td><td>EVTS</td></tr><tr><td>0.078 ± 0.018 ± 0.013</td><td>49 LINK</td></tr><tr><td></td><td>02G FOCS</td></tr><tr><td></td><td>γ nucleus, ≈ 180 GeV</td></tr></table>

<table><tr><td>Γ(Σ<sup>+</sup> K<sup>+</sup> π<sup>-</sup> π<sup>0</sup>)/Γ(Σ<sup>+</sup> π<sup>+</sup> π<sup>-</sup>)</td><td>Γ<sub>90</sub>/Γ<sub>67</sub></td></tr><tr><td>VALUE</td><td>CL%</td></tr><tr><td>&lt;2.5 × 10<sup>-2</sup></td><td>90 ABLIKIM</td></tr><tr><td></td><td>23BY BES3</td></tr><tr><td></td><td>e<sup>+</sup> e<sup>-</sup> at 4.600-4.699 GeV</td></tr></table>

<table><tr><td>Γ(Σ<sup>-</sup> K<sup>+</sup> π<sup>+</sup>)/Γ(Σ<sup>+</sup> K<sup>*</sup>(892)<sup>0</sup>)</td><td>Γ<sub>91</sub>/Γ<sub>89</sub></td></tr><tr><td>VALUE</td><td>CL%</td></tr><tr><td>&lt;0.35</td><td>90 LINK</td></tr><tr><td></td><td>02G FOCS</td></tr><tr><td></td><td>γ nucleus, ≈ 180 GeV</td></tr></table>

### Doubly Cabibbo-suppressed modes

<table><tr><td>Γ(ρK<sup>+</sup>π<sup>-</sup>)/Γ(ρK<sup>-</sup>π<sup>+</sup>)</td><td>Γ<sub>92</sub>/Γ<sub>2</sub></td></tr><tr><td>VALUE (units 10<sup>-3</sup>)</td><td>EVTS</td></tr><tr><td>1.77 ± 0.27 OUR AVERAGE</td><td>Error includes scale factor of 1.9.</td></tr><tr><td>1.65 ± 0.15 ± 0.05</td><td>392 AAIJ</td></tr><tr><td>2.35 ± 0.27 ± 0.21</td><td>3379 YANG</td></tr><tr><td></td><td>18V LHCB</td></tr><tr><td></td><td>16 BELL</td></tr><tr><td></td><td>Λ<sub>D</sub><sup>0</sup> → Λ<sub>C</sub><sup>+</sup> μ<sup>-</sup> X</td></tr><tr><td></td><td>At or near Υ<sub>S</sub></td></tr></table>

### Semileptonic modes

<table><tr><td>Γ(Λe<sup>+</sup> ν<sub>e</sub>)/Γ<sub>total</sub></td><td>Γ<sub>93</sub>/Γ</td></tr><tr><td>VALUE (%)</td><td>EVTS</td></tr><tr><td>3.56 ± 0.11 ± 0.07</td><td>1 ABLIKIM</td></tr><tr><td></td><td>22AT BES3</td></tr><tr><td></td><td>4.5 fb<sup>-1</sup> in e<sup>+</sup> e<sup>-</sup> at 4.600-4.699 GeV</td></tr></table>

• • • We do not use the following data for averages, fits, limits, etc.

<table><tr><td>3.63 ± 0.38 ± 0.20</td><td>104 2 ABLIKIM</td></tr><tr><td></td><td>15Y BES3</td></tr><tr><td></td><td>567 pb<sup>-1</sup>, 4.599 GeV</td></tr></table>

¹ Using Lattice QCD calculations for the form factors yields $|V_{CS}| = 0.936 \pm 0.030$.

² Superseded by ABLIKIM 22AT.

<table><tr><td>Γ(Λe<sup>+</sup> ν<sub>e</sub>)/Γ(ρK<sup>-</sup>π<sup>+</sup>)</td><td>Γ<sub>93</sub>/Γ<sub>2</sub></td></tr><tr><td>VALUE</td><td>EVTS</td></tr><tr><td>0.43 ± 0.08</td><td>1,2 BERGFELD</td></tr><tr><td>0.38 ± 0.14</td><td>2,3 ALBRECHT</td></tr><tr><td></td><td>94 CLE2</td></tr><tr><td></td><td>91G ARG</td></tr><tr><td></td><td>e<sup>+</sup> e<sup>-</sup> ≈ 10.4 GeV</td></tr></table>

¹ BERGFELD 94 measures $\sigma(e^+ e^- \to \Lambda_c^+ X) \cdot B(\Lambda_c^+ \to \Lambda e^+ \nu_e) = (4.87 \pm 0.28 \pm 0.69)$ pb.

² To extract $\Gamma(\Lambda_c^+ \to \Lambda e^+ \nu_e)/\Gamma(\Lambda_c^+ \to \rho K^- \pi^+)$, we use $\sigma(e^+ e^- \to \Lambda_c^+ X) \cdot B(\Lambda_c \to \rho K^- \pi^+) = (11.2 \pm 1.3)$ pb, which is the weighted average of measurements from ARGUS (ALBRECHT 96e) and CLEO (AVERY 91).

³ ALBRECHT 91G measures $\sigma(e^+ e^- \to \Lambda_c^+ X) \cdot B(\Lambda_c^+ \to \Lambda e^+ \nu_e) = (4.20 \pm 1.28 \pm 0.71)$ pb.

<table><tr><td>Γ(Λπ<sup>+</sup> π<sup>-</sup> e<sup>+</sup> ν<sub>e</sub>)/Γ<sub>total</sub></td><td>Γ<sub>94</sub>/Γ</td></tr><tr><td>VALUE</td><td>CL%</td></tr><tr><td>&lt;3.9 × 10<sup>-4</sup></td><td>90 ABLIKIM</td></tr><tr><td></td><td>23AB BES3</td></tr><tr><td></td><td>4.5 fb<sup>-1</sup>, e<sup>+</sup> e<sup>-</sup> at 4.600-4.699 GeV</td></tr></table>

<table><tr><td>Γ(ρK<sup>-</sup> e<sup>+</sup> ν<sub>e</sub>)/Γ<sub>total</sub></td><td>Γ<sub>95</sub>/Γ</td></tr><tr><td>VALUE (units 10<sup>-3</sup>)</td><td>EVTS</td></tr><tr><td>0.88 ± 0.17 ± 0.07</td><td></td></tr><tr><td></td><td>22BB BES</td></tr><tr><td></td><td>4.5 fb<sup>-1</sup> in e<sup>+</sup> e<sup>-</sup> at 4.600-4.699 GeV</td></tr></table>

<table><tr><td>Γ(ρK<sup>0</sup><sub>S</sub> π<sup>-</sup> e<sup>+</sup> ν<sub>e</sub>)/Γ<sub>total</sub></td><td>Γ<sub>96</sub>/Γ</td></tr><tr><td>VALUE</td><td>CL%</td></tr><tr><td>&lt;3.3 × 10<sup>-4</sup></td><td>90 ABLIKIM</td></tr><tr><td></td><td>23AB BES3</td></tr><tr><td></td><td>4.5 fb<sup>-1</sup>, e<sup>+</sup> e<sup>-</sup> at 4.600-4.699 GeV</td></tr></table>

<table><tr><td>Γ(Λ(1520) e<sup>+</sup> ν<sub>e</sub>)/Γ<sub>total</sub></td><td>Γ<sub>97</sub>/Γ</td></tr><tr><td>VALUE (units 10<sup>-3</sup>)</td><td>EVTS</td></tr><tr><td>1.02 ± 0.52 ± 0.11</td><td>1 ABLIKIM</td></tr><tr><td></td><td>22BB BES</td></tr><tr><td></td><td>4.5 fb<sup>-1</sup> e<sup>+</sup> e<sup>-</sup> at 4.600-4.699 GeV</td></tr></table>

¹ ABLIKIM 22BB reports $B(\Lambda_c^+ \to \Lambda(1520) e^+ \nu_e) \cdot B(\Lambda(1520) \to \rho K^-) = (2.3 \pm 1.2 \pm 0.2) \times 10^{-4}$, which is divided by the best value for $B(\Lambda(1520) \to \rho K^-)$ assuming the isospin limit 2 $\cdot B(\Lambda(1520) \to \rho K^-) = B(\Lambda(1520) \to N\bar{N}) = 0.45 \pm 0.01$.
$$ \Gamma(\Lambda(1405)^0 e^+ \nu_e, \Lambda^0 \to pK^-) / \Gamma_{\text{total}} \qquad \Gamma_{98} / \Gamma $$

<table><thead><tr><th>VALUE (units 10<sup>-3</sup>)</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.42&plusmn;0.19&plusmn;0.04</td><td>ABLIKIM</td><td>22BB BES</td><td>4.5 fb<sup>-1</sup> in e<sup>+</sup> e<sup>-</sup> at 4.600-4.699 GeV</td></tr></tbody></table>

$$ \Gamma(\Lambda^+ \nu_\mu) / \Gamma_{\text{total}} \qquad \Gamma_{99} / \Gamma $$

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>3.48&plusmn;0.14&plusmn;0.10</td><td>752</td><td>ABLIKIM</td><td>23AT BES3</td><td>e<sup>+</sup> e<sup>-</sup> at 4.600-4.699 GeV</td></tr></tbody></table>

• • • We do not use the following data for averages, fits, limits, etc. • • •

<table><tbody><tr><td>3.49&plusmn;0.46&plusmn;0.27</td><td>79</td><td>1 ABLIKIM</td><td>17D BES3</td><td>e<sup>+</sup> e<sup>-</sup> at 4.6 GeV</td></tr></tbody></table>

¹ Superseded by ABLIKIM 23AT.

$$ \Gamma(\Lambda^+ \nu_\mu) / \Gamma(pK^- \pi^+) \qquad \Gamma_{99} / \Gamma_2 $$

<table><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody></tbody></table>

• • • We do not use the following data for averages, fits, limits, etc. • • •

<table><tbody><tr><td>0.40&plusmn;0.09</td><td>1,2 BERGFELD</td><td>94</td><td>CLE2</td><td>e<sup>+</sup> e<sup>-</sup> &asymp; T(4S)</td></tr></tbody></table>

<table><tbody><tr><td>0.35&plusmn;0.20</td><td>2,3 ALBRECHT</td><td>91G ARG</td><td>e<sup>+</sup> e<sup>-</sup> &asymp; 10.4 GeV</td></tr></tbody></table>

¹ BERGFELD 94 measures $\sigma(e^+ e^- \to \Lambda_c^+ X) \cdot B(\Lambda_c^+ \to \Lambda^+ \nu_\mu) = (4.43 \pm 0.51 \pm 0.64)$ pb).

² To extract $\Gamma(\Lambda_c^+ \to \Lambda^+ \nu_\mu) / \Gamma(\Lambda_c^+ \to pK^- \pi^+)$, we use $\sigma(e^+ e^- \to \Lambda_c^+ X) \cdot B(\Lambda_c^+ \to pK^- \pi^+) = (11.2 \pm 1.3)$ pb, which is the weighted average of measurements from ARGUS (ALBRECHT 96E) and CLEO (AVERY 91).

³ ALBRECHT 91G measures $\sigma(e^+ e^- \to \Lambda_c^+ X) \cdot B(\Lambda_c^+ \to \Lambda^+ \nu_\mu) = (3.91 \pm 2.02 \pm 0.90)$ pb.

$$ \Gamma(\Lambda^+ \nu_\mu) / \Gamma(\Lambda^+ \nu_e) \qquad \Gamma_{99} / \Gamma_3 $$

<table><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody></tbody></table>

• • • We do not use the following data for averages, fits, limits, etc. • • •

<table><tbody><tr><td>0.96&plusmn;0.16&plusmn;0.04</td><td>1 ABLIKIM</td><td>17D BES3</td><td>e<sup>+</sup> e<sup>-</sup> at 4.6 GeV</td></tr></tbody></table>

¹ This is the ratio of the ABLIKIM 17D $\Lambda^+ \nu_e$ branching fraction and the ABLIKIM 15Y $\Lambda^+ \nu_e$ branching fraction (see above), and so is not an independent measurement.

Inclusive modes

$$ \Gamma(e^+ \text{ anything}) / \Gamma_{\text{total}} \qquad \Gamma_{100} / \Gamma $$

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>4.06&plusmn;0.10&plusmn;0.09</td><td>4692</td><td>ABLIKIM</td><td>23AK BES3</td><td>e<sup>+</sup> e<sup>-</sup> at 4.6-4.698 GeV</td></tr></tbody></table>

• • • We do not use the following data for averages, fits, limits, etc. • • •

<table><tbody><tr><td>3.95&plusmn;0.34&plusmn;0.09</td><td>214</td><td>1 ABLIKIM</td><td>18AF BES3</td><td>e<sup>+</sup> e<sup>-</sup> 4.6 GeV</td></tr></tbody></table>

¹ Superseded by ABLIKIM 23AK.

$$ \Gamma(\rho \text{ anything}) / \Gamma_{\text{total}} \qquad \Gamma_{101} / \Gamma $$

<table><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.50&plusmn;0.08&plusmn;0.14</td><td>1 CRAWFORD</td><td>92</td><td>CLEO</td><td>e<sup>+</sup> e<sup>-</sup> 10.5 GeV</td></tr></tbody></table>

¹ This CRAWFORD 92 value includes protons from $\Lambda$ decay. The value is model dependent, but account is taken of this in the systematic error.

$$ \Gamma(n \text{ anything}) / \Gamma_{\text{total}} \qquad \Gamma_{102} / \Gamma $$

<table><thead><tr><th>VALUE (units 10<sup>-2</sup>)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody></tbody></table>

32.6&plusmn;1.6 OUR AVERAGE

<table><tbody><tr><td>32.4&plusmn;0.7&plusmn;1.5</td><td>3105</td><td>1 ABLIKIM</td><td>23AS BES3</td><td>e<sup>+</sup> e<sup>-</sup> at 4.6-4.698 GeV</td></tr><tr><td>50 &plusmn; 8 &plusmn; 14</td><td></td><td>2 CRAWFORD</td><td>92 CLEO</td><td>e<sup>+</sup> e<sup>-</sup> 10.5 GeV</td></tr></tbody></table>

¹ ABLIKIM 23AS measures the antiparticle decay $\bar{\Lambda}_c^- \to \pi X$.

² This CRAWFORD 92 value includes neutrons from $\Lambda$ decay. The value is model dependent, but account is taken of this in the systematic error.

$$ \Gamma(\Lambda \text{ anything}) / \Gamma_{\text{total}} \qquad \Gamma_{103} / \Gamma $$

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>38.2&plusmn;2.8&plusmn;0.9</td><td>700</td><td>ABLIKIM</td><td>18E BES3</td><td>e<sup>+</sup> e<sup>-</sup> at 4.6 GeV</td></tr></tbody></table>

$$ \Gamma(K_S^0 \text{ anything}) / \Gamma_{\text{total}} \qquad \Gamma_{104} / \Gamma $$

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>9.9&plusmn;0.6&plusmn;0.4</td><td>478</td><td>ABLIKIM</td><td>20AJ BES3</td><td>e<sup>+</sup> e<sup>-</sup> at 4.6 GeV</td></tr></tbody></table>

$$ \Gamma(3\text{prongs}) / \Gamma_{\text{total}} \qquad \Gamma_{105} / \Gamma $$

<table><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.24&plusmn;0.07&plusmn;0.04</td><td>KAYIS-TOPAK.03</td><td>CHRS</td><td>ν<sub>μ</sub> emulsion, E=27 GeV</td></tr></tbody></table>

Rare or forbidden modes

$$ \Gamma(\rho e^- e^+) / \Gamma_{\text{total}} \qquad \Gamma_{106} / \Gamma $$

A test for the $\Delta C=1$ weak neutral current. Allowed by higher-order electroweak interactions.

<table><thead><tr><th>VALUE</th><th>CL%</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>&lt;5.5 &times; 10<sup>-6</sup></td><td>90</td><td>4.0 &plusmn; 7.1</td><td>LEES</td><td>11G BABR</td><td>e<sup>+</sup> e<sup>-</sup> &asymp; T(4S)</td></tr></tbody></table>

$$ \Gamma(\rho \mu^+ \mu^- \text{ non-resonant}) / \Gamma_{\text{total}} \qquad \Gamma_{107} / \Gamma $$

A test for the $\Delta C=1$ weak neutral current. Allowed by higher-order electroweak interactions.

<table><thead><tr><th>VALUE</th><th>CL%</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>&lt;7.7 &times; 10<sup>-8</sup></td><td>90</td><td>AAIJ</td><td>18N LHCB</td><td>Ratio to pφ, φ → μ<sup>+</sup> μ<sup>-</sup></td></tr></tbody></table>

• • • We do not use the following data for averages, fits, limits, etc. • • •

<table><tbody><tr><td>&lt;4.4 &times; 10<sup>-5</sup></td><td>90</td><td>LEES</td><td>11G BABR</td><td>e<sup>+</sup> e<sup>-</sup> &asymp; T(4S)</td></tr><tr><td>&lt;3.4 &times; 10<sup>-4</sup></td><td>90</td><td>KODAMA</td><td>95 E653</td><td>π<sup>-</sup> emulsion 600 GeV</td></tr></tbody></table>

$$ \Gamma(\rho e^+ \mu^-) / \Gamma_{\text{total}} \qquad \Gamma_{108} / \Gamma $$

A test of lepton family-number conservation.

<table><thead><tr><th>VALUE</th><th>CL%</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>&lt;9.9 &times; 10<sup>-6</sup></td><td>90</td><td>-0.7 &plusmn; 3.0</td><td>LEES</td><td>11G BABR</td><td>e<sup>+</sup> e<sup>-</sup> &asymp; T(4S)</td></tr></tbody></table>

$$ \Gamma(\rho e^- \mu^+) / \Gamma_{\text{total}} \qquad \Gamma_{109} / \Gamma $$

A test of lepton family-number conservation.

<table><thead><tr><th>VALUE</th><th>CL%</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>&lt;19 &times; 10<sup>-6</sup></td><td>90</td><td>6.2 &plusmn; 4.9</td><td>LEES</td><td>11G BABR</td><td>e<sup>+</sup> e<sup>-</sup> &asymp; T(4S)</td></tr></tbody></table>

$$ \Gamma(\bar{\rho}2e^+) / \Gamma_{\text{total}} \qquad \Gamma_{110} / \Gamma $$

A test of lepton- and baryon-number conservation.

<table><thead><tr><th>VALUE</th><th>CL%</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>&lt;2.7 &times; 10<sup>-6</sup></td><td>90</td><td>-1.5 &plusmn; 4.5</td><td>LEES</td><td>11G BABR</td><td>e<sup>+</sup> e<sup>-</sup> &asymp; T(4S)</td></tr></tbody></table>

$$ \Gamma(\bar{\rho}2\mu^+) / \Gamma_{\text{total}} \qquad \Gamma_{111} / \Gamma $$

A test of lepton- and baryon-number conservation and of lepton family-number conservation.

<table><thead><tr><th>VALUE</th><th>CL%</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>&lt;9.4 &times; 10<sup>-6</sup></td><td>90</td><td>0.0 &plusmn; 2.2</td><td>LEES</td><td>11G BABR</td><td>e<sup>+</sup> e<sup>-</sup> &asymp; T(4S)</td></tr></tbody></table>

$$ \Gamma(\bar{\rho}e^+ \mu^+) / \Gamma_{\text{total}} \qquad \Gamma_{112} / \Gamma $$

A test of lepton- and baryon-number conservation and of lepton family-number conservation.

<table><thead><tr><th>VALUE</th><th>CL%</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>&lt;16 &times; 10<sup>-6</sup></td><td>90</td><td>10.1 &plusmn; 6.8</td><td>LEES</td><td>11G BABR</td><td>e<sup>+</sup> e<sup>-</sup> &asymp; T(4S)</td></tr></tbody></table>

$$ \Gamma(\Sigma^- \mu^+ \mu^+) / \Gamma_{\text{total}} \qquad \Gamma_{113} / \Gamma $$

A test of lepton-number conservation.

<table><thead><tr><th>VALUE</th><th>CL%</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>&lt;7.0 &times; 10<sup>-4</sup></td><td>90</td><td>0</td><td>KODAMA</td><td>95 E653</td><td>π<sup>-</sup> emulsion 600 GeV</td></tr></tbody></table>

$$ \Gamma(\Sigma^+ \gamma) / \Gamma_{\text{total}} \qquad \Gamma_{114} / \Gamma $$

<table><thead><tr><th>VALUE</th><th>CL%</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>&lt;4.4 &times; 10<sup>-4</sup></td><td>90</td><td>ABLIKIM</td><td>23Z BES3</td><td>e<sup>+</sup> e<sup>-</sup> at 4.600-4.699 GeV</td></tr></tbody></table>

Radiative modes

$$ \Gamma(\Sigma^+ \gamma) / \Gamma(pK^- \pi^+) \qquad \Gamma_{114} / \Gamma_2 $$

<table><thead><tr><th>VALUE</th><th>CL%</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>&lt;4.0 &times; 10<sup>-3</sup></td><td>90</td><td>LI</td><td>23 BELL</td><td>e<sup>+</sup> e<sup>-</sup> → T(nS)</td></tr></tbody></table>

Exotic modes

$$ \Gamma(\rho\gamma_D) / \Gamma_{\text{total}} \qquad \Gamma_{115} / \Gamma $$

Here $\gamma_D$ stands for a dark photon.

<table><thead><tr><th>VALUE</th><th>CL%</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>&lt;8.0 &times; 10<sup>-5</sup></td><td>90</td><td>ABLIKIM</td><td>22AR BES</td><td>4.5 fb<sup>-1</sup> e<sup>+</sup> e<sup>-</sup> at 4.600-4.699 GeV</td></tr></tbody></table>

$\Lambda_c^+$ DECAY PARAMETERS

See the review on "Baryon Decay Parameters."

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>-0.755 &plusmn; 0.006 OUR AVERAGE</td><td>264k</td><td>1 LI</td><td>23C BELL</td><td>e<sup>+</sup> e<sup>-</sup> at/near T(nS), n=1,...,5</td></tr><tr><td>-0.80 &plusmn; 0.11 &plusmn; 0.02</td><td></td><td>ABLIKIM</td><td>19AX BES3</td><td>e<sup>+</sup> e<sup>-</sup> at 4.6 GeV</td></tr><tr><td>-0.78 &plusmn; 0.16 &plusmn; 0.19</td><td></td><td>LINK</td><td>06A FOCS</td><td>γΛ, E<sub>γ</sub> ≈ 180 GeV</td></tr><tr><td>-0.94 &plusmn; 0.21 &plusmn; 0.12</td><td>414</td><td>2 BISHAI</td><td>95 CLE2</td><td>e<sup>+</sup> e<sup>-</sup> ≈ T(4S)</td></tr><tr><td>-0.96 &plusmn; 0.42</td><td></td><td>ALBRECHT</td><td>92 ARG</td><td>e<sup>+</sup> e<sup>-</sup> ≈ 10.4 GeV</td></tr><tr><td>-1.1 &plusmn; 0.4</td><td>86</td><td>AVERY</td><td>90B CLEO</td><td>e<sup>+</sup> e<sup>-</sup> ≈ 10.6 GeV</td></tr></tbody></table>

¹ LI 23C obtained the value by a fit for the product $\alpha \times c_{\Lambda}^{\text{avg}}$, and dividing by the value $\alpha_{\Lambda}^{\text{avg}} = 0.7542 \pm 0.0026$ reported in ABLIKIM 22AG.

² BISHAI 95 actually gives $\alpha = -0.94^{+0.21}_{-0.06} \pm 0.12$ chopping the errors at the physical limit -1.0. However, for $\alpha \approx -1.0$, some experiments should get unphysical values ($\alpha < -1.0$), and for averaging with other measurements such values (or errors that extend below -1.0) should not be chopped.

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>-0.763 &plusmn; 0.053 &plusmn; 0.045</td><td>8.9k</td><td>ABLIKIM</td><td>22BA BES3</td><td>e<sup>+</sup> e<sup>-</sup> at 4.6-4.7 GeV</td></tr></tbody></table>

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>-0.484 &plusmn; 0.027 OUR AVERAGE</td><td>7k</td><td>LI</td><td>23A BELL</td><td>e<sup>+</sup> e<sup>-</sup> at/near T(nS), n=1,...,5</td></tr><tr><td>-0.57 &plusmn; 0.10 &plusmn; 0.07</td><td></td><td>ABLIKIM</td><td>19AX BES3</td><td>e<sup>+</sup> e<sup>-</sup> at 4.6 GeV</td></tr><tr><td>-0.45 &plusmn; 0.31 &plusmn; 0.06</td><td>89</td><td>BISHAI</td><td>95 CLE2</td><td>e<sup>+</sup> e<sup>-</sup> ≈ T(4S)</td></tr></tbody></table>
### α FOR $\Lambda_c^+ \to \Sigma^+ \eta$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>-0.99±0.03±0.05</td><td>700</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>LI</td><td>23A</td><td>e<sup>+</sup>e<sup>-</sup> at/near Υ(nS),<br>n=1,...,5</td></tr></tbody></table>

### α FOR $\Lambda_c^+ \to \Sigma^+ \eta'$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>-0.46±0.06±0.03</td><td>300</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>LI</td><td>23A</td><td>e<sup>+</sup>e<sup>-</sup> at/near Υ(nS),<br>n=1,...,5</td></tr></tbody></table>

### α FOR $\Lambda_c^+ \to \Sigma^0 \pi^+$

#### $-0.466 \pm 0.018$ OUR AVERAGE

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>-0.463±0.016±0.008</td><td>105k</td></tr><tr><td>-0.73±0.17±0.07</td><td></td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>1 LI</td><td>23C</td><td>e<sup>+</sup>e<sup>-</sup> at/near Υ(nS),<br>n=1,...,5</td></tr><tr><td>ABLIKIM</td><td>19AX BES3</td><td>e<sup>+</sup>e<sup>-</sup> at 4.6 GeV</td></tr></tbody></table>

1 LI 23C obtained the value by a fit for the product $\alpha \times \alpha_{\Lambda}^{\text{avg}}$, and dividing by the value $\alpha_{\Lambda}^{\text{avg}} = 0.7542 \pm 0.0026$ reported in ABLIKIM 22AG.

### α FOR $\Lambda_c^+ \to \Sigma(1385)^+ \pi^0$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>-0.917±0.069±0.056</td><td>8.9k</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>ABLIKIM</td><td>22BA BES3</td><td>e<sup>+</sup>e<sup>-</sup> at 4.6-4.7 GeV</td></tr></tbody></table>

### α FOR $\Lambda_c^+ \to \Sigma(1385)^0 \pi^+$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>-0.789±0.098±0.056</td><td>8.9k</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>ABLIKIM</td><td>22BA BES3</td><td>e<sup>+</sup>e<sup>-</sup> at 4.6-4.7 GeV</td></tr></tbody></table>

### α FOR $\Lambda_c^+ \to \Lambda\ell^+ \nu_\ell$

The experiments don't cover the complete (or same incomplete) $M(\Lambda\ell^+)$ range, but we average them together anyway.

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>-0.875±0.033</td><td>OUR AVERAGE</td><td></td><td></td><td></td></tr><tr><td>-0.94±0.07±0.03</td><td>752</td><td>1 ABLIKIM</td><td>23AT BES3</td><td>e<sup>+</sup>e<sup>-</sup>, 4.600-4.699 GeV</td></tr><tr><td>-0.86±0.03±0.02</td><td>3201</td><td>2 HINSON</td><td>05 CLEO</td><td>e<sup>+</sup>e<sup>-</sup> ≈ Υ(4S)</td></tr><tr><td>-0.91±0.42±0.25</td><td></td><td>3 ALBRECHT</td><td>94B ARG</td><td>e<sup>+</sup>e<sup>-</sup> ≈ 10 GeV</td></tr><tr><td colspan="5">• • • We do not use the following data for averages, fits, limits, etc. • • •</td></tr><tr><td>-0.82±0.09±0.06</td><td>700</td><td>4 CRAWFORD</td><td>95 CLE2</td><td>See HINSON 05</td></tr><tr><td>-0.89±0.17±0.09</td><td>350</td><td>5 BERGFELD</td><td>94 CLE2</td><td>See CRAWFORD 95</td></tr></tbody></table>

1 ABLIKIM 23AT measures $\alpha$ of $\Lambda_c^+ \to \Lambda\mu^+\nu_\ell$ decay over eight $q^2$ bins from zero to the kinematic endpoint. The value provided here is $\langle \alpha \rangle$, averaged over $q^2$. The analysis uses form factors extracted from a simultaneous fit to electron and muon mode data.

2 HINSON 05 measures the form-factor ratio $R = f_2/f_1$ for $\Lambda_c^+ \to \Lambda e^+\nu_e$ events to be $-0.31 \pm 0.05 \pm 0.04$ and the pole mass to be $2.21 \pm 0.08 \pm 0.14$ GeV/c$^2$, and from these calculates $\alpha$, averaged over $q^2$, where $\langle q^2 \rangle = 0.67$ (GeV/c)$^2$.

3 ALBRECHT 94B uses $\Lambda e^+$ and $\Lambda\mu^+$ events in the mass range $1.85 < M(\Lambda\ell^+) < 2.20$ GeV.

4 CRAWFORD 95 measures the form-factor ratio $R = f_2/f_1$ for $\Lambda_c^+ \to \Lambda e^+\nu_e$ events to be $-0.25 \pm 0.14 \pm 0.08$ and from this calculates $\alpha$, averaged over $q^2$, to be the above.

5 BERGFELD 94 uses $\Lambda e^+$ events.

### α FOR $\Lambda_c^+ \to p K_0^S$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>0.18±0.43±0.14</td><td></td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>ABLIKIM</td><td>19AX BES3</td><td>e<sup>+</sup>e<sup>-</sup> at 4.6 GeV</td></tr></tbody></table>

### α FOR $\Lambda_c^+ \to \Lambda K^+$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>-0.585±0.049±0.018</td><td>11k</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>1 LI</td><td>23C</td><td>e<sup>+</sup>e<sup>-</sup> at/near Υ(nS),<br>n=1,...,5</td></tr></tbody></table>

1 LI 23C obtained the value by a fit for the product $\alpha \times \alpha_{\Lambda}^{\text{avg}}$, and dividing by the value $\alpha_{\Lambda}^{\text{avg}} = 0.7542 \pm 0.0026$ reported in ABLIKIM 22AG.

### α FOR $\Lambda_c^+ \to \Sigma^0 K^+$

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>-0.54±0.18±0.09</td><td>2.4k</td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>1 LI</td><td>23C</td><td>e<sup>+</sup>e<sup>-</sup> at/near Υ(nS),<br>n=1,...,5</td></tr></tbody></table>

1 LI 23C obtained the value by a fit for the product $\alpha \times \alpha_{\Lambda}^{\text{avg}}$, and dividing by the value $\alpha_{\Lambda}^{\text{avg}} = 0.7542 \pm 0.0026$ reported in ABLIKIM 22AG.

### α FOR $\Lambda_c^+ \to \Lambda(1405)^+ \pi^+$

The polarization is defined with respect to the daughter baryon momentum in the parent rest frame. See "Baryon Decay Parameters" review.

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>0.58±0.05±0.01±0.28</td><td></td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>1 AAIJ</td><td>23Z</td><td>1.7fb<sup>-1</sup>, pp at 13 TeV</td></tr></tbody></table>

1 AAIJ 23Z uses an amplitude analysis of 400k $\Lambda_c \to p K^- \pi^+$ decays, the last uncertainty is due to the amplitude model. Sign determined per authors; see also AAIJ 23AJ.

### α FOR $\Lambda_c^+ \to \Lambda(1520)^+ \pi^+$

The polarization is defined with respect to the daughter baryon momentum in the parent rest frame. See "Baryon Decay Parameters" review.

<table><thead><tr><th>VALUE</th><th>EVTS</th></tr></thead><tbody><tr><td>0.925±0.025±0.005±0.084</td><td></td></tr></tbody></table>

<table><thead><tr><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>1 AAIJ</td><td>23Z</td><td>1.7fb<sup>-1</sup>, pp at 13 TeV</td></tr></tbody></table>

1 AAIJ 23Z uses an amplitude analysis of 400k $\Lambda_c \to p K^- \pi^+$ decays, the last uncertainty is due to the amplitude model. Sign determined per authors; see also AAIJ 23AJ.

### α FOR $\Lambda_c^+ \to \Lambda(1600)^+ \pi^+$

The polarization is defined with respect to the daughter baryon momentum in the parent rest frame. See "Baryon Decay Parameters" review.

<table><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.20±0.06±0.03±0.50</td><td></td><td></td><td></td></tr></tbody></table>

1 AAIJ 23Z uses an amplitude analysis of 400k $\Lambda_c \to p K^- \pi^+$ decays, the last uncertainty is due to the amplitude model. Sign determined per authors; see also AAIJ 23AJ.

### α FOR $\Lambda_c^+ \to \Lambda(1670)^+ \pi^+$

The polarization is defined with respect to the daughter baryon momentum in the parent rest frame. See "Baryon Decay Parameters" review.

<table><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.817±0.042±0.006±0.073</td><td></td><td></td><td></td></tr></tbody></table>

1 AAIJ 23Z uses an amplitude analysis of 400k $\Lambda_c \to p K^- \pi^+$ decays, the last uncertainty is due to the amplitude model. Sign determined per authors; see also AAIJ 23AJ.

### α FOR $\Lambda_c^+ \to \Lambda(1690)^+ \pi^+$

The polarization is defined with respect to the daughter baryon momentum in the parent rest frame. See "Baryon Decay Parameters" review.

<table><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.958±0.020±0.006±0.027</td><td></td><td></td><td></td></tr></tbody></table>

1 AAIJ 23Z uses an amplitude analysis of 400k $\Lambda_c \to p K^- \pi^+$ decays, the last uncertainty is due to the amplitude model. Sign determined per authors; see also AAIJ 23AJ.

### α FOR $\Lambda_c^+ \to \Lambda(2000)^+ \pi^+$

<table><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>-0.57±0.03±0.01±0.19</td><td></td><td></td><td></td></tr></tbody></table>

1 AAIJ 23Z uses an amplitude analysis of 400k $\Lambda_c \to p K^- \pi^+$ decays, the last uncertainty is due to the amplitude model. Sign determined per authors; see also AAIJ 23AJ.

### α FOR $\Lambda_c^+ \to \Delta(1232)^++ K^-$

The polarization is defined with respect to the daughter baryon momentum in the parent rest frame. See "Baryon Decay Parameters" review.

<table><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.548±0.014±0.004±0.036</td><td></td><td></td><td></td></tr></tbody></table>

1 AAIJ 23Z uses an amplitude analysis of 400k $\Lambda_c \to p K^- \pi^+$ decays, the last uncertainty is due to the amplitude model. Sign determined per authors; see also AAIJ 23AJ.

### α FOR $\Lambda_c^+ \to \Delta(1600)^++ K^-$

The polarization is defined with respect to the daughter baryon momentum in the parent rest frame. See "Baryon Decay Parameters" review.

<table><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>-0.50±0.05±0.01±0.17</td><td></td><td></td><td></td></tr></tbody></table>

1 AAIJ 23Z uses an amplitude analysis of 400k $\Lambda_c \to p K^- \pi^+$ decays, the last uncertainty is due to the amplitude model. Sign determined per authors; see also AAIJ 23AJ.

### α FOR $\Lambda_c^+ \to \Delta(1700)^++ K^-$

The polarization is defined with respect to the daughter baryon momentum in the parent rest frame. See "Baryon Decay Parameters" review.

<table><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.216±0.036±0.011±0.075</td><td></td><td></td><td></td></tr></tbody></table>

1 AAIJ 23Z uses an amplitude analysis of 400k $\Lambda_c \to p K^- \pi^+$ decays, the last uncertainty is due to the amplitude model. Sign determined per authors; see also AAIJ 23AJ.

### α FOR $\Lambda_c^+ \to \bar{K}_0^0(700)^0 p$

The polarization is defined with respect to the daughter baryon momentum in the parent rest frame. See "Baryon Decay Parameters" review.

<table><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>-0.06±0.66±0.23±0.24</td><td></td><td></td><td></td></tr></tbody></table>

1 AAIJ 23Z uses an amplitude analysis of 400k $\Lambda_c \to p K^- \pi^+$ decays, the last uncertainty is due to the amplitude model. Sign determined per authors; see also AAIJ 23AJ.

### α FOR $\Lambda_c^+ \to \bar{K}_0^0(1430)^0 p$

The polarization is defined with respect to the daughter baryon momentum in the parent rest frame. See "Baryon Decay Parameters" review.

<table><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.34±0.03±0.01±0.14</td><td></td><td></td><td></td></tr></tbody></table>

1 AAIJ 23Z uses an amplitude analysis of 400k $\Lambda_c \to p K^- \pi^+$ decays, the last uncertainty is due to the amplitude model. Sign determined per authors; see also AAIJ 23AJ.

### $\Lambda_c^+, \bar{\Lambda}_c^-$ CP-VIOLATING DECAY ASYMMETRIES

#### $(\alpha + \bar{\alpha})/(\alpha - \bar{\alpha})$ in $\Lambda_c^+ \to \Lambda\pi^+, \bar{\Lambda}_c^- \to \bar{\Lambda}\pi^-$

This is zero if CP is conserved.

<table><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.020±0.016</td><td>OUR AVERAGE</td><td></td><td></td></tr></tbody></table>

<table><thead><tr><th>0.020±0.007±0.014</th><th>EVTS</th><th>LI</th><th>23C</th><th>BELL</th><th>e<sup>+</sup>e<sup>-</sup> at/near Υ(nS),<br>n=1,...,5</th></tr></thead><tbody><tr><td>-0.07±0.19±0.24</td><td></td><td>LINK</td><td>06A</td><td>FOCS</td><td>γA, Eγ ≈ 180 GeV</td></tr></tbody></table>

#### $(\alpha + \bar{\alpha})/(\alpha - \bar{\alpha})$ in $\Lambda_c^+ \to \Sigma^0 \pi^+, \bar{\Lambda}_c^- \to \bar{\Sigma}^0 \pi^-$

<table><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>-0.023±0.034±0.030</td><td></td><td></td><td></td></tr></tbody></table>

<table><thead><tr><th>0.023±0.034±0.030</th><th>EVTS</th><th>LI</th><th>23C</th><th>BELL</th><th>e<sup>+</sup>e<sup>-</sup> at/near Υ(nS),<br>n=1,...,5</th></tr></thead><tbody><tr><td>-0.023±0.034±0.030</td><td></td><td></td><td></td><td></td><td></td></tr></tbody></table>
$$ (\alpha + \bar{\alpha})/(\alpha - \bar{\alpha}) \text{ in } \Lambda_c^+ \rightarrow \Lambda^+ e^- \nu_e, \bar{\Lambda}_c^- \rightarrow \bar{\Lambda} e^- \nu_e $$

This is zero if CP is conserved.

<table><thead><tr><th>VALUE</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.00 ± 0.03 ± 0.02</td><td>HINSON</td><td>05</td><td>CLEO</td></tr></tbody></table>

$$ (\alpha + \bar{\alpha})/(\alpha - \bar{\alpha}) \text{ in } \Lambda_c^+ \rightarrow \Lambda K^+, \bar{\Lambda}_c^- \rightarrow \bar{\Lambda} K^- $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>-0.23 ± 0.086 ± 0.071</td><td>11k</td><td>LI</td><td>23c</td><td>e<sup>+</sup> e<sup>-</sup> at/ near T(nS),<br>n=1,...,5</td></tr></tbody></table>

$$ (\alpha + \bar{\alpha})/(\alpha - \bar{\alpha}) \text{ in } \Lambda_c^+ \rightarrow \Sigma^0 K^+, \bar{\Lambda}_c^- \rightarrow \bar{\Sigma}^0 K^- $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.08 ± 0.35 ± 0.14</td><td>2.4k</td><td>LI</td><td>23c</td><td>e<sup>+</sup> e<sup>-</sup> at/ near T(nS),<br>n=1,...,5</td></tr></tbody></table>

$$ A_{CP}(\Lambda X) \text{ in } \Lambda_c \rightarrow \Lambda X, \bar{\Lambda}_c \rightarrow \bar{\Lambda} X $$

<table><thead><tr><th>VALUE (%)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>2.1 + 7.0 - 6.6 ± 1.6</td><td>700</td><td>ABLIKIM</td><td>18E</td><td>BES3 e<sup>+</sup> e<sup>-</sup> at 4.6 GeV</td></tr></tbody></table>

$$ A_{CP}(\Lambda K^+) \text{ in } \Lambda_c \rightarrow \Lambda K^+, \bar{\Lambda}_c \rightarrow \bar{\Lambda} K^- $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.021 ± 0.026 ± 0.001</td><td>11k</td><td>LI</td><td>23c</td><td>e<sup>+</sup> e<sup>-</sup> at/ near T(nS),<br>n=1,...,5</td></tr></tbody></table>

$$ A_{CP}(\Sigma^0 K^+) \text{ in } \Lambda_c \rightarrow \Sigma^0 K^+, \bar{\Lambda}_c \rightarrow \bar{\Sigma}^0 K^- $$

<table><thead><tr><th>VALUE</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.025 ± 0.054 ± 0.004</td><td>2.4k</td><td>LI</td><td>23c</td><td>e<sup>+</sup> e<sup>-</sup> at/ near T(nS),<br>n=1,...,5</td></tr></tbody></table>

$$ \Delta A_{CP} = A_{CP}(\Lambda_c^+ \rightarrow p K^+ K^-) - A_{CP}(\Lambda_c^+ \rightarrow p \pi^+ \pi^-) $$

<table><thead><tr><th>VALUE (%)</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>0.30 ± 0.91 ± 0.61</td><td>1 AAIJ</td><td>18R</td><td>LHCB pp 7, 8 TeV</td></tr></tbody></table>

## $\Lambda_c^+$ REFERENCES

We have omitted some papers that have been superseded by later experiments. The omitted papers may be found in our 1992 edition (Physical Review D45, 1 June, Part II) or in earlier editions.

<table><tbody><tr><td>AAIJ</td><td>23AJ</td><td>JHEP 2307 228</td><td>R. Aaij et al.</td><td>(LHCb Collab.)</td></tr><tr><td>AAIJ</td><td>23Z</td><td>PR D108 012023</td><td>R. Aaij et al.</td><td>(LHCb Collab.)</td></tr><tr><td>ABLIKIM</td><td>23A</td><td>CP C47 023001</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>23AB</td><td>PR D94 137993</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>23AK</td><td>PR D107 052005</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>23AS</td><td>PR D108 L031101</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>23AT</td><td>PR D108 L031105</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>23BY</td><td>JHEP 2309 125</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>23CB</td><td>JHEP 2311 137</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>23Z</td><td>PR D107 052002</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABUDINEN</td><td>23A</td><td>PRL 130 071802</td><td>F. Abudinen et al.</td><td>(BELLÉ II Collab.)</td></tr><tr><td>LI</td><td>23D</td><td>PRL 032001</td><td>Y. Li et al.</td><td>(BELLÉ Collab.)</td></tr><tr><td>LI</td><td>23A</td><td>PRL 0307 023003</td><td>S.X. Li et al.</td><td>(BELLÉ Collab.)</td></tr><tr><td>LI</td><td>23B</td><td>PRL 0307 023004</td><td>L.K. Li et al.</td><td>(BELLÉ Collab.)</td></tr><tr><td>LI</td><td>23C</td><td>SCIB 68 583</td><td>L.K. Li et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>22AG</td><td>PRL 129 131801</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>22AK</td><td>PR D106 052003</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>22AN</td><td>PR D106 072002</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>22AR</td><td>PR D106 072008</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>22AT</td><td>PR D129 231803</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>22BA</td><td>JHEP 2212 033</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>22BB</td><td>PR D106 112010</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>22BC</td><td>PR D106 L111101</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>22S</td><td>PRL 128 142001</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>LI</td><td>22B</td><td>JHEP 2203 090</td><td>S.X. Li et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>21H</td><td>PRL B817 136327</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>21N</td><td>PR D103 L091101</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>LEE</td><td>21A</td><td>PR D103 052005</td><td>J.Y. Lee et al.</td><td>(BELLÉ Collab.)</td></tr><tr><td>LI</td><td>21</td><td>PR D103 072004</td><td>S.X. Li et al.</td><td>(BELLÉ Collab.)</td></tr><tr><td>LI</td><td>21E</td><td>PR D104 072008</td><td>S.X. Li et al.</td><td>(BELLÉ Collab.)</td></tr><tr><td>ABLIKIM</td><td>20AJ</td><td>EPJ C80 935</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>AAIJ</td><td>19AG</td><td>PR D100 032001</td><td>R. Aaij et al.</td><td>(LHCb Collab.)</td></tr><tr><td>AAIJ</td><td>19AX</td><td>PR D100 072004</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>AAIJ</td><td>19X</td><td>CP C43 083002</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>19Y</td><td>PR D99 032010</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>AAIJ</td><td>18R</td><td>PR D97 091101</td><td>R. Aaij et al.</td><td>(LHCb Collab.)</td></tr><tr><td>AAIJ</td><td>18J</td><td>JHEP 1803 182</td><td>R. Aaij et al.</td><td>(LHCb Collab.)</td></tr><tr><td>AAIJ</td><td>18V</td><td>JHEP 1803 043</td><td>R. Aaij et al.</td><td>(LHCb Collab.)</td></tr><tr><td>18AFJ</td><td>PRL 121 251801</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>18E</td><td>PRL 121 062003</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>18Y</td><td>PL B783 200</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABERGER</td><td>18</td><td>PR D98 112006</td><td>M. Berger et al.</td><td>(BELLÉ Collab.)</td></tr><tr><td>ABLIKIM</td><td>17D</td><td>PL B767 42</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>17H</td><td>PRL 118 112001</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>17Q</td><td>PR D95 111102</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ABLIKIM</td><td>17Y</td><td>PL B772 388</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>17</td><td>PRL D96 051102</td><td>B. Pal et al.</td><td>(BELLÉ Collab.)</td></tr><tr><td>ABLIKIM</td><td>16</td><td>PRL 116 052001</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>16U</td><td>PRL 117 232002</td><td>M. Ablikim et al.</td><td>(BELLÉ Collab.)</td></tr><tr><td>YANG</td><td>16</td><td>PRL 117 011801</td><td>S.B. Yang et al.</td><td>(BELLÉ Collab.)</td></tr><tr><td>ABLIKIM</td><td>15Y</td><td>PRL 115 221805</td><td>M. Ablikim et al.</td><td>(BESIII Collab.)</td></tr><tr><td>ZUPANC</td><td>14</td><td>PR L13 042002</td><td>A. Zupanc et al.</td><td>(BELLÉ Collab.)</td></tr><tr><td>LEES</td><td>11G</td><td>PR D84 072006</td><td>J.P. Lees et al.</td><td>(BABAR Collab.)</td></tr><tr><td>VAZQUEZ-JA...</td><td>08</td><td>PL B666 299</td><td>E. Vazquez-Jauregui et al.</td><td>(SELEX Collab.)</td></tr><tr><td>AUBERT</td><td>07U</td><td>PR D75 052002</td><td>B. Aubert et al.</td><td>(BABAR Collab.)</td></tr><tr><td>LINK</td><td>06A</td><td>PL B634 165</td><td>J.M. Link et al.</td><td>(FINAL FOCUS Collab.)</td></tr><tr><td>AUBERT,B</td><td>05S</td><td>PR D72 052006</td><td>B. Aubert et al.</td><td>(BABAR Collab.)</td></tr><tr><td>HINSON</td><td>05</td><td>PR J9 191801</td><td>J.W. Hinson et al.</td><td>(CLEO Collab.)</td></tr><tr><td>LINK</td><td>05F</td><td>PL B624 22</td><td>J.M. Link et al.</td><td>(FINAL FOCUS Collab.)</td></tr><tr><td>CRONIN-HEN...</td><td>03</td><td>PR D67 012001</td><td>D. Cronin-Hennessy et al.</td><td>(CLEO Collab.)</td></tr><tr><td>KAYIS-TOPAKA...</td><td>03</td><td>PL B555 156</td><td>A. Kayis-Topaksu et al.</td><td>(CERN CHORUS Collab.)</td></tr></tbody></table>

<table><tbody><tr><td>ABE</td><td>02C</td><td>PL B524 33</td><td>K. Abe et al.</td><td>(KEK BELLE Collab.)</td></tr><tr><td>LINK</td><td>02C</td><td>PRL 88 161801</td><td>J.M. Link et al.</td><td>(FINAL FOCUS Collab.)</td></tr><tr><td>02G</td><td>PL B540 25</td><td>J.M. Link et al.</td><td>(FINAL FOCUS Collab.)</td></tr><tr><td>PDG</td><td>02</td><td>PR D66 001001</td><td>K. Hagiwara et al.</td><td>(PDG Collab.)</td></tr><tr><td>KUSHNIR...</td><td>01</td><td>PR L86 5243</td><td>A. Kushnirenko et al.</td><td>(FINAL SELEX Collab.)</td></tr><tr><td>MAHMOOD</td><td>01</td><td>PR L86 2232</td><td>A.H.M. Mahmood et al.</td><td>(CLEO Collab.)</td></tr><tr><td>AITALA</td><td>00</td><td>PL B471 449</td><td>E.M. Aitala et al.</td><td>(FINAL E791 Collab.)</td></tr><tr><td>ALAM</td><td>98</td><td>PR D57 4674</td><td>M.S. Alam et al.</td><td>(CLEO Collab.)</td></tr><tr><td>ALBRECHT</td><td>96E</td><td>PRPL 276 223</td><td>H. Albrecht et al.</td><td>(ARGUS Collab.)</td></tr><tr><td>ALEXANDER</td><td>96C</td><td>PR D53 1013</td><td>J.P. Alexander et al.</td><td>(CLEO Collab.)</td></tr><tr><td>ALBRECHT</td><td>95B</td><td>PL B342 397</td><td>H. Albrecht et al.</td><td>(ARGUS Collab.)</td></tr><tr><td>ALBRECHT</td><td>95</td><td>PR L74 3534</td><td>R. Ammar et al.</td><td>(CLEO Collab.)</td></tr><tr><td>BISHAI</td><td>95</td><td>PR B350 256</td><td>M. Bishal et al.</td><td>(CLEO Collab.)</td></tr><tr><td>CRAWFORD</td><td>95</td><td>PR L75 624</td><td>G. Crawford et al.</td><td>(CLEO Collab.)</td></tr><tr><td>KODAMA</td><td>95</td><td>PL B345 85</td><td>K. Kodama et al.</td><td>(FINAL E653 Collab.)</td></tr><tr><td>ALBRECHT</td><td>94B</td><td>PL B326 320</td><td>H. Albrecht et al.</td><td>(ARGUS Collab.)</td></tr><tr><td>ALEEV</td><td>94</td><td>PAN 57 1370</td><td>A.N. Alev et al.</td><td>(Serpukhov BIS-2 Collab.)</td></tr><tr><td>AVERY</td><td>94</td><td>PL B325 257</td><td>P. Avery et al.</td><td>(CLEO Collab.)</td></tr><tr><td>BERGFELD</td><td>94</td><td>PL B323 219</td><td>T. Bergfeld et al.</td><td>(CLEO Collab.)</td></tr><tr><td>FRABETTI</td><td>94E</td><td>PL B328 193</td><td>P.L. Frabetti et al.</td><td>(FINAL E687 Collab.)</td></tr><tr><td>AVERY</td><td>93</td><td>PL L71 2391</td><td>P. Avery et al.</td><td>(CLEO Collab.)</td></tr><tr><td>BOZI</td><td>93</td><td>PL B218 247</td><td>A. Bozek et al.</td><td>(CERN NA32 Collab.)</td></tr><tr><td>FRABETTI</td><td>93D</td><td>PL L70 1755</td><td>P.L. Frabetti et al.</td><td>(FINAL E687 Collab.)</td></tr><tr><td>FRABETTI</td><td>93H</td><td>PL B314 477</td><td>P.L. Frabetti et al.</td><td>(FINAL E687 Collab.)</td></tr><tr><td>KUBOTA</td><td>93</td><td>PL L71 3255</td><td>Y. Kubota et al.</td><td>(CLEO Collab.)</td></tr><tr><td>ALBRECHT</td><td>92</td><td>PL B274 239</td><td>H. Albrecht et al.</td><td>(ARGUS Collab.)</td></tr><tr><td>BARLAG</td><td>92</td><td>PL B283 465</td><td>S. Barlag et al.</td><td>(ACCMOR Collab.)</td></tr><tr><td>CRAWFORD</td><td>92</td><td>PR D45 752</td><td>G. Crawford et al.</td><td>(CLEO Collab.)</td></tr><tr><td>JEZABEK</td><td>92</td><td>PL B286 175</td><td>M. Jezabek, K. Rybicki, R. Rykło</td><td>(CRAC)</td></tr><tr><td>ALBRECHT</td><td>91G</td><td>PL B269 234</td><td>H. Albrecht et al.</td><td>(ARGUS Collab.)</td></tr><tr><td>AVERY</td><td>91</td><td>PR D43 3599</td><td>P. Avery et al.</td><td>(CLEO Collab.)</td></tr><tr><td>ALVAREZ</td><td>90</td><td>ZPHY C47 539</td><td>M.P. Alvarez et al.</td><td>(CERN NA14/2 Collab.)</td></tr><tr><td>ALVAREZ</td><td>90B</td><td>PL B246 256</td><td>M.P. Alvarez et al.</td><td>(CERN NA14/2 Collab.)</td></tr><tr><td>ANJOS</td><td>90</td><td>PR D41 801</td><td>J.C. Anjos et al.</td><td>(FINAL E691 Collab.)</td></tr><tr><td>AVERY</td><td>90B</td><td>PRL 65 2842</td><td>P. Avery et al.</td><td>(CLEO Collab.)</td></tr><tr><td>BARLAG</td><td>90D</td><td>ZPHY C48 29</td><td>S. Barlag et al.</td><td>(ACCMOR Collab.)</td></tr><tr><td>FRABETTI</td><td>90</td><td>PL B251 639</td><td>P.L. Frabetti et al.</td><td>(FINAL E687 Collab.)</td></tr><tr><td>BARLAG</td><td>89</td><td>PL B218 374</td><td>S. Barlag et al.</td><td>(ACCMOR Collab.)</td></tr><tr><td>AGUILAR...</td><td>88B</td><td>ZPHY C40 321</td><td>M. Aguilar-Benitez et al.</td><td>(LEBC-EHS Collab.)</td></tr><tr><td>Also</td><td>88C</td><td>PL B189 254</td><td>M. Aguilar-Benitez et al.</td><td>(LEBC-EHS Collab.)</td></tr><tr><td>Also</td><td>88B</td><td>PL B199 462</td><td>M. Aguilar-Benitez et al.</td><td>(LEBC-EHS Collab.)</td></tr><tr><td>Also</td><td>88B</td><td>SJNP 48 833</td><td>M. Begalli et al.</td><td>(LEBC-EHS Collab.)</td></tr><tr><td>ALBRECHT</td><td>88C</td><td>PL B207 109</td><td>H. Albrecht et al.</td><td>(ARGUS Collab.)</td></tr><tr><td>ANJOS</td><td>88B</td><td>PRL 60 1379</td><td>J.C. Anjos et al.</td><td>(FINAL E691 Collab.)</td></tr><tr><td>AMENDOLIA</td><td>87</td><td>ZPHY C36 513</td><td>S.R. Amendolia et al.</td><td>(CERN NA1 Collab.)</td></tr><tr><td>JONES</td><td>87</td><td>ZPHY C36 593</td><td>G.T. Jones et al.</td><td>(CERN W2A1 Collab.)</td></tr><tr><td>BOSETTI</td><td>82</td><td>PL 109B 234</td><td>P.C. Bosetti et al.</td><td>(AACHJ, BONN, CERN+)</td></tr><tr><td>81BASLE</td><td>81</td><td>NC 62A 14</td><td>M. Basle et al.</td><td>(CERN, BGNA, PGIA, FRAS)</td></tr><tr><td>CALICCHIO</td><td>80</td><td>PL 93B 521</td><td>M. Calicchio et al.</td><td>(BARI, BIRM, BRUX+)</td></tr></tbody></table>

## OTHER RELATED PAPERS

<table><tr><td>MIGLIOZZI</td><td>99</td><td>PL B462 217</td><td>P. Migliozzi et al.</td></tr><tr><td>DUNIETZ</td><td>98</td><td>PR D58 094010</td><td>I. Dunietz</td></tr></table>

$$ \Lambda_c(2595)^+ $$

$$ I(J^P) = 0(\frac{1}{2}^-) \text{ Status: } ** $$

The $\Lambda_c^+ \pi^+ \pi^-$ mode is largely, and perhaps entirely, $\Sigma_c \pi$, which is just at threshold; since the $\Sigma_c$ has $J^P = 1/2^+$, the $J^P$ here is almost certainly $1/2^-$. This result is in accord with the theoretical expectation that this is the charm counterpart of the strange $\Lambda(1405)$.

$$ \Lambda_c(2595)^+ \text{ MASS} $$

The mass is obtained from the $\Lambda_c(2595)^+ - \Lambda_c^+$ mass-difference measurements below.

<table><tr><td>VALUE (MeV)</td><td>EVTS</td></tr><tr><td>2592.25 ± 0.28</td><td>OUR FIT</td></tr></table>

DOCUMENT ID

$$ \Lambda_c(2595)^+ - \Lambda_c^+ \text{ MASS DIFFERENCE} $$

<table><thead><tr><th>VALUE (MeV)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>305.79 ± 0.24</td><td>OUR FIT</td><td>3.5k</td><td>AALTONEN</td><td>11H CDF</td><td>pT at 1.96 TeV</td></tr><tr><td>305.79 ± 0.14 ± 0.20</td><td>18R</td><td>3.5k</td><td>AALTONEN</td><td>11H CDF</td><td>pT at 1.96 TeV</td></tr></tbody></table>

* * * We do not use the following data for averages, fits, limits, etc. * * *

<table><tbody><tr><td>305.6 ± 0.3</td><td>1</td><td>BLECHMAN</td><td>03</td><td>Threshold shift</td></tr><tr><td>309.7 ± 0.9 ± 0.4</td><td>19</td><td>ALBRECHT</td><td>97</td><td>ARG e<sup>+</sup> e<sup>-</sup> ≈ 10 GeV</td></tr><tr><td>309.2 ± 0.7 ± 0.3</td><td>14 ± 4.5</td><td>FRABETTI</td><td>96</td><td>E687 γBe, E<sub>γ</sub> ≈ 220 GeV</td></tr><tr><td>307.5 ± 0.4 ± 1.0</td><td>112 ± 17</td><td>EDWARDS</td><td>95</td><td>CLE2 e<sup>+</sup> e<sup>-</sup> ≈ 10.5 GeV</td></tr></tbody></table>

$$ \Lambda_c(2595)^+ \text{ WIDTH} $$

<table><thead><tr><th>VALUE (MeV)</th><th>EVTS</th><th>DOCUMENT ID</th><th>TECN</th><th>COMMENT</th></tr></thead><tbody><tr><td>2.59 ± 0.30 ± 0.47</td><td>1</td><td>2</td><td>AALTONEN</td><td>11H CDF</td><td>pT at 1.96 TeV</td></tr><tr><td>2.9 + 2.9 + 1.8</td><td>19</td><td>ALBRECHT</td><td>97</td><td>ARG e<sup>+</sup> e<sup>-</sup> ≈ 10 GeV</td></tr><tr><td>2.1 - 2.1 - 1.4</td><td>19</td><td>FRABETTI</td><td>96</td><td>E687 γBe, E<sub>γ</sub> ≈ 220 GeV</td></tr><tr><td>3.9 + 1.4 + 2.0</td><td>112 ± 17</td><td>EDWARDS</td><td>95</td><td>CLE2 e<sup>+</sup> e<sup>-</sup> ≈ 10.5 GeV</td></tr><tr><td>1.2 - 1.2 - 1.0</td><td>112 ± 17</td><td>EDWARDS</td><td>95</td><td>CLE2 e<sup>+</sup> e<sup>-</sup> ≈ 10.5 GeV</td></tr></tbody></table>

<footnote n="1">¹ AAIJ 18r applies phase-space-dependent weights to the $\Lambda_c^+ \rightarrow p K^+ K^-$ sample to align its kinematics with the $\Lambda_c^+ \rightarrow p K^+ K^-$ sample.</footnote>

<footnote n="1">¹ BLECHMAN 03 finds that a more sophisticated treatment than a simple Breit-Wigner for the proximity of the threshold of the dominant decay, $\Sigma_c(2455)\pi$, lowers the $\Lambda_c(2595)^+ - \Lambda_c^+$ mass difference by 2 or 3 MeV. The analysis of AALTONEN 11H bears this out.</footnote>
$$ \Lambda_c(2765)^+ \text{ or } \Sigma_c(2765) $$

$I(J^P) = ?(??) \text{ Status: *}$

OMITTED FROM SUMMARY TABLE

A broad, statistically significant peak ($997_{-129}^{+141}$ events) seen in $\Lambda_c^+\pi^+\pi^-$. However, nothing at all is known about its quantum numbers, including whether it is a $\Lambda_c^+$ or a $\Sigma_c$, or whether the width might be due to overlapping states.

$\Lambda_c(2765)^+$ MASS

The mass is obtained from the $\Lambda_c(2765)^+ - \Lambda_c^+$ mass-difference measurement below.

VALUE (MeV)

2766.6 $\pm$ 2.4 OUR FIT

DOCUMENT ID

$\Lambda_c(2765)^+ - \Lambda_c^+$ MASS DIFFERENCE

VALUE (MeV)

480.1 $\pm$ 2.4 OUR FIT

480.1 $\pm$ 2.4

EVTS

DOCUMENT ID

TECN

COMMENT

$997_{-129}^{+141}$

ARTUSO

01

CLE2

$e^+e^- \sim \tau(4S)$

$\Lambda_c(2765)^+$ WIDTH

VALUE (MeV)

50

DOCUMENT ID

TECN

COMMENT

$e^+e^- \approx \tau(4S)$

$\Lambda_c(2765)^+$ DECAY MODES

Mode

Fraction ($\Gamma_i/\Gamma$)

$\Gamma_1 \quad \Lambda_c^+\pi^+\pi^-$

seen

$\Lambda_c(2765)^+$ REFERENCES

ARTUSO

01

PRL 86 4479

M. Artuso et al.

(CLEO Collab.)

$$ \Lambda_c(2860)^+ \text{ I}(J^P) = 0(\frac{3}{2}^+) \text{ Status: ***} $$

$\Lambda_c(2860)^+$ MASS

VALUE (MeV)

$2856.1 \pm 2.0 \pm 0.5 \pm 1.1 \pm 5.6$

DOCUMENT ID

TECN

COMMENT

$1 \text{ AAIJ}$

17s

LHCB

in $\Lambda_b^0 \to D^0 p\pi^-$

¹ The third AAIJ 17s uncertainty comes from modeling the resonant shape of the nearby $\Lambda_c(2880)^+$ and the background (non-resonant) amplitudes.

$\Lambda_c(2860)^+$ WIDTH

VALUE (MeV)

$67.6 \pm 10.1 \pm 1.4 \pm 5.9 \pm 20.0$

DOCUMENT ID

TECN

COMMENT

$1 \text{ AAIJ}$

17s

LHCB

in $\Lambda_b^0 \to D^0 p\pi^-$

¹ The third AAIJ 17s uncertainty comes from modeling the resonant shape of the nearby $\Lambda_c(2880)^+$ and the background (non-resonant) amplitudes.

$\Lambda_c(2860)^+$ DECAY MODES

Mode

Fraction ($\Gamma_i/\Gamma$)

$\Gamma_1 \quad D^0 p$

seen

$\Lambda_c(2860)^+$ BRANCHING RATIOS

$\Gamma(D^0 p)/\Gamma_{\text{total}}$

VALUE

seen

$\Gamma_1/\Gamma$

DOCUMENT ID

TECN

COMMENT

$1 \text{ AAIJ}$

17s

LHCB

in $\Lambda_b^0 \to D^0 p\pi^-$

$\Lambda_c(2860)^+$ REFERENCES

AAIJ

17s JHEP 1705 030

R. Aaij et al.

(LHCb Collab.) JP

$$ \Lambda_c(2880)^+ \text{ I}(J^P) = 0(\frac{5}{2}^+) \text{ Status: ***} $$

A narrow peak seen in $\Lambda_c^+\pi^+\pi^-$ and in $pD^0$. It is not seen in $pD^+$, and therefore it is a $\Lambda_c^+$ and not a $\Sigma_c$.

$\Lambda_c(2880)^+$ MASS

VALUE (MeV) EVTS

2881.63 $\pm$ 0.24 OUR FIT

2881.62 $\pm$ 0.24 OUR AVERAGE

$2881.75 \pm 0.29 \pm 0.07 \pm 0.14 \pm 0.20$

1 AAIJ

17s

LHCB

in $\Lambda_b^0 \to D^0 p\pi^-$

$2881.9 \pm 0.1 \pm 0.5$

2.8k AUBERT

07

BABR in $pD^0$

$2881.2 \pm 0.2 \pm 0.4$

690 MIZUK

07

BELL in $\Sigma_c(2455)^{0,++} \pi^+$

¹ The third AAIJ 17s uncertainty comes from modeling the resonant shape of the $\Lambda_c(2880)^+$ and the background (non-resonant) amplitudes.

$\Lambda_c(2880)^+ - \Lambda_c^+$ MASS DIFFERENCE

VALUE (MeV) EVTS

595.17 $\pm$ 0.28 OUR FIT

$596 \pm 1 \pm 2$

DOCUMENT ID

TECN

COMMENT

$350$

ARTUSO

01

CLE2

$\Lambda_c^+\pi^+\pi^-$

$\Lambda_c(2880)^+$ WIDTH

VALUE (MeV) CL% EVTS

5.6 $\pm 0.8 \pm 0.6$ OUR AVERAGE

$5.43 \pm 0.77 \pm 0.81 \pm 0.71 \pm 0.29$

2 AAIJ

17s

LHCB

in $\Lambda_b^0 \to D^0 p\pi^-$

$5.8 \pm 1.5 \pm 1.1$

2.8k AUBERT

07

BABR in $pD^0$

$5.8 \pm 0.7 \pm 1.1$

690 MIZUK

07

BELL in $\Sigma_c(2455)^{0,++} \pi^+$

• • • We do not use the following data for averages, fits, limits, etc. • • •

<8

90

ARTUSO

01

CLEO in $\Lambda_c^+\pi^+\pi^-$

² AAIJ 17s reports $5.43 \pm 0.77 \pm 0.75 \pm 0.00$ MeV value where the third uncertainty comes from modeling the resonant shape of the $\Lambda_c(2880)^+$ and the background (non-resonant) amplitudes. We have combined in quadrature the systematic uncertainties.

$\Lambda_c(2880)^+$ DECAY MODES

Mode

Fraction ($\Gamma_i/\Gamma$)

$\Gamma_1 \quad \Lambda_c^+\pi^+\pi^-$

$\Gamma_2 \quad \Sigma_c(2455)^{0,++} \pi^+$

$\Gamma_3 \quad \Sigma_c(2520)^{0,++} \pi^+$

$\Gamma_4 \quad pD^0$

seen

seen

seen

seen

$\Lambda_c(2880)^+$ BRANCHING RATIOS

$\Gamma(\Sigma_c(2455)^{0,++} \pi^+) / \Gamma(\Lambda_c^+\pi^+\pi^-)$

$\Gamma_2/\Gamma_1$

VALUE EVTS

0.392 $\pm$ 0.031 OUR AVERAGE

Error includes scale factor of 1.3.

$0.404 \pm 0.021 \pm 0.014$

MIZUK

07

BELL

in $\Sigma_c(2455)^{0,++} \pi^+$

$0.31 \pm 0.06 \pm 0.03$

ARTUSO

01

CLE2

$e^+e^- \approx \tau(4S)$

$\Gamma(\Sigma_c(2520)^{0,++} \pi^+) / \Gamma(\Lambda_c^+\pi^+\pi^-)$

$\Gamma_3/\Gamma_1$

VALUE CL% EVTS

$0.091 \pm 0.025 \pm 0.010$

DOCUMENT ID

TECN

COMMENT

$07$

BELL

in $\Sigma_c(2455)^{0,++} \pi^+$

• • • We do not use the following data for averages, fits, limits, etc. • • •

<0.11

90

ARTUSO

01

CLE2

$e^+e^- \approx \tau(4S)$

$\Gamma(\Sigma_c(2520)^{0,++} \pi^+) / \Gamma(\Sigma_c(2455)^{0,++} \pi^+)$

$\Gamma_3/\Gamma_2$

VALUE EVTS

• • • We do not use the following data for averages, fits, limits, etc. • • •

$0.225 \pm 0.062 \pm 0.025$

³ MIZUK

07

BELL

in $\Sigma_c(2455)^{0,++} \pi^+$

³ This MIZUK 07 ratio is redundant with MIZUK 07 ratios given above.

$\Lambda_c(2880)^+$ REFERENCES

AAIJ 17s

JHEP 1705 030

R. Aaij et al.

(LHCb Collab.) JP

AUBERT 07

PRL 98 012001

B. Aubert et al.

(BABAR Collab.)

MIZUK 07

PRL 98 262001

R. Mizuk et al.

(BELLE Collab.)

ARTUSO 01

PRL 86 4479

M. Artuso et al.

(CLEO Collab.)