Citation: S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024)Ξ (1530) 3/2+I (J P ) = 21 ( 23 + ) Status:∗∗∗∗This is the only Ξ resonance whose properties are all reasonably well
P+known. Assuming that the Λ+c has J = 1/2 , AUBERT 08AK,− + +in a study of Λ+c → Ξ π K , finds conclusively that the spinof the Ξ (1530)0 is 3/2. In conjunction with SCHLEIN 63B and
BUTTON-SHAFER 66, this proves also that the parity is + .
We use only those determinations of the mass and width that areaccompanied by some discussion of systematics and resolution.

Ξ (1530) POLE POSITIONS
Ξ (1530)0 REAL PARTVALUE

DOCUMENT ID

COMMENT

1531.6± 0.4

LICHTENBERG74

Using HABIBI 73

VALUE

DOCUMENT ID

COMMENT

4.45± 0.35

LICHTENBERG74

Using HABIBI 73Ξ (1530)0 IMAGINARY PARTΞ (1530)− REAL PARTVALUE

DOCUMENT ID

COMMENT

1534.4± 1.1

LICHTENBERG74

Using HABIBI 73

VALUE

DOCUMENT ID

COMMENT+ 1.75
3.9 −3.9

LICHTENBERG74

Using HABIBI 73Ξ (1530)− IMAGINARY PARTΞ (1530) MASSES
Ξ (1530)0 MASSVALUE (MeV)EVTS

DOCUMENT ID

TECNCOMMENT

1531.80± 0.32 OUR FIT Error includes scale factor of 1.3.
1531.78± 0.34 OUR AVERAGE Error includes scale factor of 1.4. See the ideogram
below.
1532.2 ± 0.7
DEBELLEFON 75B HBC
K− p → Ξ− K π
1533 ± 1
ROSS
73B HBCK − p → Ξ K π (π)
1531.4 ± 0.8
59
BADIER
72 HBCK − p 3.95 GeV/c
1532.0 ± 0.4
1262
BALTAY72 HBCK − p 1.75 GeV/c
1531.3 ± 0.6
324
BORENSTEIN 72 HBC
K − p 2.2 GeV/c
1532.3 ± 0.7286KIRSCH72 HBC
K − p 2.87 GeV/c
1528.7 ± 1.1
76
LONDON66 HBC
K − p 2.24 GeV/c• • • We do not use the following data for averages, fits, limits, etc. • • •1532.1 ± 0.4
1244
ASTON
85B LASS K − p 11 GeV/c11532.1 ± 0.6
2700
BAUBILLIER 81B HBC
K − p 8.25 GeV/c
1530

±1

https://pdg.lbl.gov

450

BIAGIPage 181SPECSPS hyperon beamCreated: 5/31/2024 10:12

Citation: S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024)

1527 ± 61535 ± 41533.6 ± 1.4

80
10097

SIXEL
SIXEL
BERTHON

797974

HBCHBCHBC

K − p 10 GeV/c
K − p 16 GeV/c
Quasi-2-body σ

WEIGHTED AVERAGE
1531.78±0.34 (Error scaled by 1.4)
Values above of weighted average, error,and scale factor are based upon the data inthis 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.

χDEBELLEFON 75B
ROSS
73B
BADIER72
BALTAY72
BORENSTEIN 72KIRSCH72
LONDON6620.4
1.50.20.30.60.6
7.8
11.4(Confidence Level = 0.077)

1526

1528

1530

1532

1534

1536

HBC
HBC
HBC
HBC
HBC
HBC
HBC

1538

Ξ (1530)0 mass (MeV)Ξ (1530)− MASSVALUE (MeV)EVTS

DOCUMENT ID

TECNCOMMENT

1535.0± 0.6 OUR FIT
1535.2± 0.8 OUR AVERAGE
1534.5± 1.2
DEBELLEFON 75B HBC
K− p → Ξ− K π
1535.3± 2.0
ROSS
73B HBCK − p → Ξ K π (π)
1536.2± 1.6185
KIRSCH
72 HBCK − p 2.87 GeV/c
1535.7± 3.238LONDON
66 HBCK − p 2.24 GeV/c• • • We do not use the following data for averages, fits, limits, etc. • • •1540 ± 31534.7± 1.1

48334

BERTHONBALTAY

7472HBC
HBC

Quasi-2-body σ
K − p 1.75 GeV/cm Ξ (1530)− − m Ξ (1530)
VALUE (MeV)

DOCUMENT ID

3.2± 0.6 OUR FIT
2.9± 0.9 OUR AVERAGE
2.7± 1.0
2.0± 3.2
5.7± 3.0

BALTAYMERRILL
PJERROU

https://pdg.lbl.gov

Page 2TECN

72 HBC66 HBC
65B HBCCOMMENTK − p 1.75 GeV/cK − p 1.7–2.7 GeV/c
K − p 1.8–1.95 GeV/c

Created: 5/31/2024 10:12

Citation: S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024)• • • We do not use the following data for averages, fits, limits, etc. • • •2 KIRSCH
3.9± 1.872 HBC
K − p 2.87 GeV/c2 LONDON
7 ±466 HBC
K − p 2.24 GeV/cΞ (1530) WIDTHSΞ (1530)0 WIDTHVALUE (MeV)EVTS

DOCUMENT ID

TECNCOMMENT9.1± 0.5 OUR AVERAGE
9.5± 1.2
DEBELLEFON 75B HBC
K− p → Ξ− K π
9.1± 2.4
ROSS
73B HBCK − p → Ξ K π (π)
11 ± 2
BADIER
72 HBCK − p 3.95 GeV/c
9.0± 0.7
BALTAY72 HBCK − p 1.75 GeV/c
8.4± 1.4
BORENSTEIN 72 HBC
Ξ − π+
11.0± 1.8
KIRSCH
72 HBCΞ − π+7 ±7
BERGE
66 HBCK − p 1.5–1.7 GeV/c
8.5± 3.5
LONDON66 HBCK − p 2.24 GeV/c
7 ±2
SCHLEIN
63B HBCK − p 1.8, 1.95 GeV/c• • • We do not use the following data for averages, fits, limits, etc. • • •1 BAUBILLIER 81B HBC
12.8± 1.02700
K − p 8.25 GeV/c3 SIXEL
19 ± 680
79 HBCK − p 10 GeV/c314 ± 5100
SIXEL
79 HBCK − p 16 GeV/cΞ (1530)− WIDTHVALUE (MeV)

DOCUMENT ID

TECNCOMMENT+ 1.7 OUR AVERAGE
9.9 −
1.9
9.6± 2.88.3± 3.6+ 3.5
7.8 −
7.8
16.2± 4.6

BALTAY

72

HBC

K− p → Ξ− K π
K − p → Ξ K π (π)
K − p 1.75 GeV/c

KIRSCH72

HBC

Ξ − π0 , Ξ 0 π−

DEBELLEFON 75B HBC
ROSS
73B HBCΞ (1530) DECAY MODES

Γ1Γ2ModeFraction (Γi /Γ)ΞπΞγ100 %
<3.7 %

Confidence level90%Ξ (1530) BRANCHING RATIOSΓ Ξ γ /Γtotal
VALUEΓ2 /ΓCL%

DOCUMENT ID

TECNCOMMENT<0.03790
ABLIKIM
20 BES3 J/ψ → Ξ (1530)− Ξ +• • • We do not use the following data for averages, fits, limits, etc. • • •<0.0490
KALBFLEISCH 75 HBC
K − p 2.18 GeV/c

https://pdg.lbl.gov

Page 3Created: 5/31/2024 10:12

Citation: S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024)Ξ (1530) FOOTNOTES
1 BAUBILLIER 81B is a fit to the inclusive spectrum. The resolution (5 MeV) is notunfolded.
2 Redundant with data in the mass Listings.
3 SIXEL 79 doesn’t unfold the experimental resolution of 15 MeV.

Ξ (1530) REFERENCESABLIKIM20
PR D101 012004
AUBERT
08AK PR D78 034008
ASTON
85B PR D32 2270
BAUBILLIER
81B NP B192 1
BIAGI
81ZPHY C9 305
SIXEL
79
NP B159 125
DEBELLEFON 75B NC 28A 289
KALBFLEISCH 75
PR D11 987
BERTHON74
NC 21A 146
LICHTENBERG 74
PR D10 3865
AlsoPrivate Comm.
HABIBI
73
Thesis Nevis 199
ROSS
73B Purdue Conf. 355
BADIER72
NP B37 429
BALTAY72
PL 42B 129
BORENSTEIN 72
PR D5 1559
KIRSCH72
NP B40 349
BERGE66
PR 147 945
BUTTON-...
66
PR 142 883
LONDON66
PR 143 1034
MERRILL
66
Thesis UCRL 16455
PJERROU
65B PRL 14 275
SCHLEIN
63B PRL 11 167

M. Ablikim et al.
(BESIII Collab.)
B. Aubert et al.
(BABAR Collab.)
D. Aston et al.
(SLAC, CARL, CNRC, CINC)
M. Baubillier et al.
(BIRM, CERN, GLAS+)
S.F. Biagi et al.
(BRIS, CAVE, GEVA+)
P. Sixel et al.
(AACH3, BERL, CERN, LOIC+)
A. de Bellefon et al.
(CDEF, SACL)
G.R. Kalbfleisch, R.C. Strand, J.W. Chapman(BNL+)
A. Berthon et al.
(CDEF, RHEL, SACL+)
D.B. Lichtenberg(IND)
D.B. Lichtenberg(IND)
M. Habibi(COLU)
R.T. Ross, J.L. Lloyd, D. Radojicic(OXF)
J. Badier et al.
(EPOL)
C. Baltay et al.
(COLU, BING)
S.R. Borenstein et al.
(BNL, MICH) I
L.E. Kirsch et al.
(BRAN, UMD, SYRA+) I
J.P. Berge et al.
(LRL) I
J. Button-Shafer et al.
(LRL) JP
G.W. London et al.
(BNL, SYRA) IJ
D.W. Merrill(LRL) JP
G.M. Pjerrou et al.
(UCLA)
P.E. Schlein et al.
(UCLA) IJPOTHER RELATED PAPERSMAZZUCATO
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BRIEFEL
HUNGERBU...
BUTTON-...

8177757466

NP B178 1
PR D16 2706
PR D12 1859
PR D10 2051
PR 142 883

https://pdg.lbl.gov

M. Mazzucato et al.
E. Briefel et al.
E. Briefel et al.
V. Hungerbuhler et al.
J. Button-Shafer et al.

Page 4(AMST, CERN, NIJM+)(BRAN, UMD, SYRA+)(BRAN, UMD, SYRA+)(YALE, FNAL, BNL+)(LRL) JP

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