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

Λ(2085) 7/2+I (J P ) = 0( 27 + ) Status:∗∗OMITTED FROM SUMMARY TABLEwas Λ(2020)

In LITCHFIELD 71, need for the state rests solely on a possiblyinconsistent polarization measurement at 1.784 GeV/c. HEMINGWAY 75 does not require this state. GOPAL 77 does not need itin either N K orΣ π. With new K − n angular distributions included,
DECLAIS 77 sees it. However, this and other new data are includedin GOPAL 80 and the state is not required. BACCARI 77 weakly
supports it.

Λ(2085) POLE POSITIONREAL PARTVALUE

DOCUMENT ID

TECNCOMMENT• • • We do not use the following data for averages, fits, limits, etc. • • •1 KAMANO
1757
15 DPWA Multichannel
1 From the preferred solution A in KAMANO 15. Solution B reports M = 2041 + 80 MeV.
− 82

−2×IMAGINARY PARTVALUE

DOCUMENT ID

TECNCOMMENT• • • We do not use the following data for averages, fits, limits, etc. • • •1 KAMANO
146
15 DPWA Multichannel
1 From the preferred solution A in KAMANO 15. Solution B reports M = 238 + 114 MeV.
− 34

Λ(2085) POLE RESIDUESThe normalized residue is the residue divided by Γpole /2.

Normalized residue in N K → Λ(2085) → N K
MODULUSPHASE (◦ )DOCUMENT ID

TECNCOMMENT• • • We do not use the following data for averages, fits, limits, etc. • • •1 KAMANO
0.000145− 7715 DPWA Multichannel
1 From the preferred solution A in KAMANO 15.

Normalized residue in N K → Λ(2085) → Σ π
MODULUSPHASE (◦ )DOCUMENT ID

TECNCOMMENT• • • We do not use the following data for averages, fits, limits, etc. • • •1 KAMANO
0.011212015 DPWA Multichannel
1 From the preferred solution A in KAMANO 15.

Normalized residue in N K → Λ(2085) → Λ η
MODULUSPHASE (◦ )DOCUMENT ID

TECNCOMMENT• • • We do not use the following data for averages, fits, limits, etc. • • •1 KAMANO
0.000786− 10015 DPWA Multichannel
1 From the preferred solution A in KAMANO 15.

https://pdg.lbl.gov

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Citation: S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024)Normalized residue in N K → Λ(2085) → Σ (1385)π , F-wave
MODULUSPHASE (◦ )DOCUMENT ID

TECNCOMMENT• • • We do not use the following data for averages, fits, limits, etc. • • •1 KAMANO
0.00451− 82
15 DPWA Multichannel
1 From the preferred solution A in KAMANO 15.

Normalized residue in N K → Λ(2085) → Σ (1385)π , H-wave
MODULUSPHASE (◦ )DOCUMENT ID

TECNCOMMENT• • • We do not use the following data for averages, fits, limits, etc. • • •1 KAMANO
0.0000298− 128
15 DPWA Multichannel
1 From the preferred solution A in KAMANO 15.

Λ(2085) MASSVALUE (MeV)

DOCUMENT ID≈ 2020 OUR ESTIMATE
2043± 222140
2117
2100± 30
2020± 20ZHANG
BACCARIDECLAIS
LITCHFIELD
BARBARO-...

TECN

13A
77777170

COMMENTDPWA Multichannel
DPWA K − p → Λ ω
DPWA K N → K N
DPWA K − p → K N
DPWA K − p → Σ πΛ(2085) WIDTHVALUE (MeV)

DOCUMENT ID

200± 75128167
120± 30160± 30ZHANG
BACCARIDECLAIS
LITCHFIELD
BARBARO-...

TECN

13A
77777170

COMMENTDPWA Multichannel
DPWA K − p → Λ ωDPWA K N → K N
DPWA K − p → K N
DPWA K − p → Σ πΛ(2085) DECAY MODESModeΓ1Γ2Γ3Γ4Γ5Γ6Γ7Γ8Γ9Γ10Fraction (Γi /Γ)NKΣπΛη
Σ (1385)π , F-wave
Σ (1385)π , H-wave
N K ∗ (892), S=1/2
N K ∗ (892), S=1/2, F-wave
N K ∗ (892), S=3/2, F-wave
N K ∗ (892), S=3/2, H-wave
Λωhttps://pdg.lbl.gov

Page 2(30± 9) %Created: 5/31/2024 10:12

Citation: S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024)Λ(2085) 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

0.028± 0.005
ZHANG
13A DPWA Multichannel
0.05
DECLAIS77 DPWA K N → K N
0.05 ± 0.02
LITCHFIELD 71 DPWA K − p → K N• • • We do not use the following data for averages, fits, limits, etc. • • •1 KAMANO
not seen
15 DPWA Multichannel
1 From the preferred solution A in KAMANO 15.

Γ Σ π /Γtotal
VALUE

Γ2 /Γ
DOCUMENT ID

TECNCOMMENT• • • We do not use the following data for averages, fits, limits, etc. • • •1 KAMANO
0.891
15 DPWA Multichannel
1 From the preferred solution A in KAMANO 15.

Γ Λ η /Γtotal
VALUE

Γ3 /Γ
DOCUMENT ID

TECNCOMMENT• • • We do not use the following data for averages, fits, limits, etc. • • •1 KAMANO
0.002
15 DPWA Multichannel
1 From the preferred solution A in KAMANO 15.

Γ Σ (1385)π , F-wave /Γtotal
VALUE

Γ4 /Γ
DOCUMENT ID

TECNCOMMENT• • • We do not use the following data for averages, fits, limits, etc. • • •1 KAMANO
0.105
15 DPWA Multichannel
1 From the preferred solution A in KAMANO 15.

Γ Σ (1385)π , H-wave /Γtotal
VALUE

Γ5 /Γ
DOCUMENT ID

TECNCOMMENT• • • We do not use the following data for averages, fits, limits, etc. • • •1 KAMANO
not seen
15 DPWA Multichannel
1 From the preferred solution A in KAMANO 15.

Γ N K ∗ (892), S=1/2, F-wave /Γtotal
VALUE

DOCUMENT ID

Γ7 /Γ
TECN

COMMENT• • • We do not use the following data for averages, fits, limits, etc. • • •1 KAMANO
not seen
15 DPWA Multichannel
1 From the preferred solution A in KAMANO 15.

Γ N K ∗ (892), S=3/2, F-wave /Γtotal
VALUE

DOCUMENT ID

Γ8 /ΓTECNCOMMENT• • • We do not use the following data for averages, fits, limits, etc. • • •1 KAMANO
0.001
15 DPWA Multichannel
1 From the preferred solution A in KAMANO 15.

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)

Γ N K ∗ (892), S=3/2, H-wave /Γtotal
VALUE

Γ9 /Γ

DOCUMENT ID

TECNCOMMENT• • • We do not use the following data for averages, fits, limits, etc. • • •1 KAMANO
not seen
15 DPWA Multichannel
1 From the preferred solution A in KAMANO 15.

Γ N K ∗ (892), S=1/2 /Γtotal

Γ6 /Γ

VALUE

DOCUMENT ID

0.30± 0.09

ZHANG

TECN

COMMENT

13A DPWA Multichannel

1/(Γi Γf ) 2 /Γtotal in N K → Λ(2085) → Σ π1/(Γ1 Γ2 ) 2 /ΓVALUE

DOCUMENT ID

TECNCOMMENT+ 0.02± 0.01
− 0.15± 0.02

ZHANG13A DPWA Multichannel
BARBARO-... 70 DPWA K − p → Σ π

1/(Γi Γf ) 2 /Γtotal in N K → Λ(2085) → Λ ω
VALUE

DOCUMENT ID<0.05

BACCARI

1/(Γ1 Γ10 ) 2 /Γ
TECN

77

COMMENTDPWA K − p → Λ ωΛ(2085) REFERENCES
KAMANO15
PR C92 025205
ZHANG
13A PR C88 035205
GOPAL
80
Toronto Conf. 159
BACCARI77
NC 41A 96
DECLAIS77
CERN 77-16
GOPAL
77
NP B119 362
HEMINGWAY 75
NP B91 12
LITCHFIELD
71
NP B30 125
BARBARO-... 70
Duke Conf. 173
Hyperon Resonances, 1970

https://pdg.lbl.govH. Kamano et al.
H. Zhang et al.
G.P. Gopal
B. Baccari et al.
Y. Declais et al.
G.P. Gopal et al.
R.J. Hemingway et al.
P.J. Litchfield et al.
A. Barbaro-Galtieri

Page 4(ANL, OSAK)(KSU)(RHEL)(SACL, CDEF) IJP(CAEN, CERN) IJP(LOIC, RHEL)(CERN, HEIDH, MPIM) IJP(RHEL, CDEF, SACL) IJP(LRL) IJPCreated: 5/31/2024 10:12