Citation: S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024)Λ(1600) 1/2+I (J P ) = 0( 21 + ) Status:∗∗∗∗Λ(1600) POLE POSITIONREAL PARTVALUE (MeV)

DOCUMENT ID

TECNCOMMENT

1540 to 1560 (≈ 1550) OUR ESTIMATE
1546± 6 OUR AVERAGE Error includes scale factor of 2.1.
1562± 8SARANTSEV 19 DPWA K N multichannel+31 KAMANO
1544 − 315 DPWA Multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •1572
ZHANG
13A DPWA Multichannel
1 From the preferred solution A in KAMANO 15.

−2×IMAGINARY PARTVALUE (MeV)

DOCUMENT ID

TECNCOMMENT

120 to 240 (≈ 180) OUR ESTIMATE
60159 +− 12 OUR AVERAGEError includes scale factor of 6.2.

232± 15SARANTSEV 19 DPWA K N multichannel+
121112 − 2
KAMANO
15 DPWA Multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •138
ZHANG
13A DPWA Multichannel
1 From the preferred solution A in KAMANO 15.

Λ(1600) POLE RESIDUESThe normalized residue is the residue divided by Γpole /2.

Normalized residue in N K → Λ(1600) → N K
MODULUSPHASE (◦ )DOCUMENT ID

TECNCOMMENT

0.36 ± 0.07
− 63 ± 10
SARANTSEV 19 DPWA K N multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •1 KAMANO
0.105− 80
15 DPWA Multichannel
1 From the preferred solution A in KAMANO 15.

Normalized residue in N K → Λ(1600) → Σ π
MODULUSPHASE (◦ )DOCUMENT ID

TECNCOMMENT

0.39 ± 0.08
148 ± 10SARANTSEV 19 DPWA K N multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •1 KAMANO
0.232
108
15 DPWA Multichannel
1 From the preferred solution A in KAMANO 15.

Normalized residue in N K → Λ(1600) → Λ η
MODULUSPHASE (◦ )DOCUMENT ID

0.22± 0.13

180 ± 20SARANTSEV

https://pdg.lbl.gov

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19COMMENTDPWA K N multichannel

Created: 5/31/2024 10:12

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

Normalized residue in N K → Λ(1600) → Λ σ
MODULUSPHASE (◦ )DOCUMENT ID

0.30± 0.06

− 70 ± 10

SARANTSEVTECN

19COMMENTDPWA K N multichannel

Normalized residue in N K → Λ(1600) → Σ (1385)π
MODULUSPHASE (◦ )DOCUMENT ID

TECNCOMMENT

0.37 ± 0.07
103 ± 12SARANTSEV 19 DPWA K N multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •1 KAMANO
0.183
77
15 DPWA Multichannel
1 From the preferred solution A in KAMANO 15.

Normalized residue in N K → Λ(1600) → N K ∗ (892), S=1/2, P-wave
MODULUSPHASE (◦ )DOCUMENT ID

0.02± 0.01

126 ± 45SARANTSEVTECN19COMMENTDPWA K N multichannel

Normalized residue in N K → Λ(1600) → N K ∗ (892), S=3/2, P-wave
MODULUSPHASE (◦ )DOCUMENT ID

0.02± 0.01

− 135 ± 45

SARANTSEVTECN19COMMENTDPWA K N multichannel

Λ(1600) MASSVALUE (MeV)

DOCUMENT ID

TECNCOMMENT

1570 to 1630 (≈ 1600) OUR ESTIMATE1605± 8SARANTSEV 19 DPWA K N multichannel
1592± 10ZHANG
13A DPWA Multichannel
1568± 20GOPAL
80 DPWA K N → K N
1703± 100
ALSTON-...
78 DPWA K N → K N
1573± 25
GOPAL
77 DPWA K N multichannel
1596± 6KANE
74 DPWA K − p → Σ π
1620± 10LANGBEIN
72 IPWA K N multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •1 MARTIN
1572 or 1617
77 DPWA K N multichannel21646± 7CARROLL
76 DPWA Isospin-0 total σ1570
KIM
71 DPWA K-matrix analysis
1 The two MARTIN 77 values are from a T-matrix pole and from a Breit-Wigner fit.
2 A total cross-section bump with (J+1/2) Γ / Γeltotal = 0.04.

Λ(1600) WIDTHVALUE (MeV)

DOCUMENT ID

150 to 250 (≈ 200) OUR ESTIMATE
245± 15SARANTSEV
150± 28ZHANG
116± 20GOPAL
593± 200
ALSTON-...
147± 50
GOPAL
175± 20KANE
60± 10LANGBEIN

https://pdg.lbl.gov

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TECN

1913A
8078777472

COMMENTDPWA K N multichannel
DPWA Multichannel
DPWA K N → K N
DPWA K N → K N
DPWA K N multichannel
DPWA K − p → Σ π
IPWA K N multichannel

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. • • •1 MARTIN
247 or 271
77 DPWA K N multichannel
220CARROLL
76 DPWA Isospin-0 total σ
50KIM
71 DPWA K-matrix analysis
1 The two MARTIN 77 values are from a T-matrix pole and from a Breit-Wigner fit.
2 A total cross-section bump with (J+1/2) Γ / Γeltotal = 0.04.

Λ(1600) DECAY MODES

Γ1
Γ2
Γ3
Γ4

ModeFraction (Γi /Γ)

NK
Σπ
Λσ
Σ (1385)π15–30 %
10–60 %
(19± 4) %( 9± 4) %Λ(1600) BRANCHING RATIOS
See “Sign conventions for resonance couplings” in the Note on Λ and ΣResonances.

Γ N K /Γtotal
VALUE

Γ1 /Γ
DOCUMENT ID

TECNCOMMENT

0.14 to 0.28 OUR ESTIMATE
0.29 ± 0.06
SARANTSEV 19 DPWA K N multichannel
0.14 ± 0.04
ZHANG
13A DPWA Multichannel
0.23 ± 0.04
GOPAL
80 DPWA K N → K N
0.14 ± 0.05
ALSTON-...
78 DPWA K N → K N
0.25 ± 0.15
LANGBEIN
72 IPWA K N multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •1 KAMANO
0.064
15 DPWA Multichannel
0.24 ± 0.04
GOPAL
77 DPWA See GOPAL 802 MARTIN
0.30 or 0.29
77 DPWA K N multichannel
1 From the preferred solution A in KAMANO 15.
2 The two MARTIN 77 values are from a T-matrix pole and from a Breit-Wigner fit.

Γ Σ π /Γtotal
VALUE

Γ2 /Γ
DOCUMENT ID

TECNCOMMENT

0.37 ± 0.07
SARANTSEV 19 DPWA K N multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •1 KAMANO
0.851
15 DPWA Multichannel
1 From the preferred solution A in KAMANO 15.

Γ Λ σ /Γtotal

Γ3 /Γ

VALUE

DOCUMENT ID

0.19± 0.04

SARANTSEV

https://pdg.lbl.gov

Page 3TECN

19COMMENTDPWA K N multichannel

Created: 5/31/2024 10:12

Citation: S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024)Γ Σ (1385)π /Γtotal

Γ4 /Γ

VALUE

DOCUMENT ID

TECNCOMMENT

0.09 ± 0.04
SARANTSEV 19 DPWA K N multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •1 KAMANO
0.085
15 DPWA Multichannel
1 From the preferred solution A in KAMANO 15.
1/(Γ1 Γ2 ) 2 /Γ1/(Γi Γf ) 2 /Γtotal in N K → Λ(1600) → Σ π
VALUE

DOCUMENT ID

TECNCOMMENT− 0.23± 0.03
ZHANG
13A DPWA Multichannel− 0.16± 0.04
GOPAL
77 DPWA K N multichannel− 0.33± 0.11
KANE
74 DPWA K − p → Σ π
0.28± 0.09
LANGBEIN
72 IPWA K N multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •1 MARTIN− 0.39 or − 0.39
77 DPWA K N multichannel
not seenHEPP
76B DPWA K − N → Σ π
1 The two MARTIN 77 values are from a T-matrix pole and from a Breit-Wigner fit.

Λ(1600) REFERENCESSARANTSEVKAMANOZHANG
GOPAL
ALSTON-...
Also
GOPAL
MARTIN
Also
Also
CARROLL
HEPP
KANE
LANGBEIN
KIM

191513A
8078777776
76B
747271EPJ A55 180
PR C92 025205
PR C88 035205
Toronto Conf. 159
PR D18 182
PRL 38 1007
NP B119 362
NP B127 349
NP B126 266
NP B126 285
PRL 37 806
PL 65B 487
LBL-2452
NP B47 477
PRL 27 356

https://pdg.lbl.gov

A.V. Sarantsev et al.
(BONN, PNPI)
H. Kamano et al.
(ANL, OSAK)
H. Zhang et al.
(KSU)
G.P. Gopal(RHEL) IJP
M. Alston-Garnjost et al.
(LBL, MTHO+) IJP
M. Alston-Garnjost et al.
(LBL, MTHO+) IJP
G.P. Gopal et al.
(LOIC, RHEL) IJP
B.R. Martin, M.K. Pidcock, R.G. Moorhouse (LOUC+) IJP
B.R. Martin, M.K. Pidcock(LOUC)
B.R. Martin, M.K. Pidcock(LOUC) IJP
A.S. Carroll et al.
(BNL) I
V. Hepp et al.
(CERN, HEIDH, MPIM) IJP
D.F. Kane(LBL) IJP
W. Langbein, F. Wagner(MPIM) IJP
J.K. Kim(HARV) IJP

Page 4Created: 5/31/2024 10:12