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${{\mathit \Lambda}{(1690)}}$ WIDTH

INSPIRE   PDGID:

B055W

VALUE (MeV) DOCUMENT ID TECN  COMMENT $\bf{ 60\text{ to }80\text{ }(\approx70) }$ OUR ESTIMATE $75$ $\pm5$ SARANTSEV 2019 DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $54$ $\pm5$ ZHANG 2013 A DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $67.2$ $\pm5.6$ KOISO 1985 DPWA ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$ $61$ $\pm5$ GOPAL 1980 DPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\overline{\mathit K}}}{{\mathit N}}$ $64$ $\pm10$ ALSTON-GARNJO.. 1978 DPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\overline{\mathit K}}}{{\mathit N}}$ $82$ $\pm8$ HEPP 1976 B DPWA ${{\mathit K}^{-}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$ $60$ $\pm4$ KANE 1974 DPWA ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$ • • We do not use the following data for averages, fits, limits, etc. • • $60$ $\pm5$ GOPAL 1977 DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $62$ or $62$ 1 MARTIN 1977 DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $38$ CARROLL 1976 DPWA Isospin-0 total $\sigma{}$ 1  The two MARTIN 1977 values are from a T-matrix pole and from a Breit-Wigner fit. Another ${\mathit D}_{\mathrm 03}{{\mathit \Lambda}}$ at 1966 MeV is also suggested by MARTIN 1977 , but is very uncertain.

References:

SARANTSEV 2019 EPJ A55 180 Hyperon II: Properties of excited hyperons ZHANG 2013A PR C88 035205 Multichannel Parametrization of ${{\mathit K}^{-}}{{\mathit N}}$ Scattering Amplitudes and Extraction of Resonance Parameters KOISO 1985 NP A433 619 Search for the ${\mathit P}_{\mathrm 11}{{\mathit \Sigma}{(1660)}}$ Resonance in the Reactions ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Sigma}^{\pm}}{{\mathit \pi}^{\mp}}$ in the Momentum Range 597 to 888 ${\mathrm {MeV}}/\mathit c$ GOPAL 1980 Toronto Conf. 159 S = -1 Baryons: an Experimental Review ALSTON-GARNJOST 1978 PR D18 182 Partial Wave Analysis of the ${{\overline{\mathit K}}}{{\mathit N}}$ System from 360 to 1320 ${\mathrm {MeV}}/\mathit c$ Also PRL 38 1007 Further Evidence on New Resonances in the ${{\overline{\mathit K}}}{{\mathit N}}$ System GOPAL 1977 NP B119 362 Partial Wave Analyses of ${{\overline{\mathit K}}}{{\mathit N}}$ Two Body Reactions between 1480 and 2170 MeV MARTIN 1977 NP B127 349 ${{\overline{\mathit K}}}{{\mathit N}}$ Interactions in the Resonance Region. 3. Resonance Spectra Also NP B126 266 ${{\overline{\mathit K}}}{{\mathit N}}$ Interactions in the Resonance Region. 1. Analysis of Data Also NP B126 285 ${{\overline{\mathit K}}}{{\mathit n}}$ Interactions in the Resonance Region. 2. Amplitudes CARROLL 1976 PRL 37 806 Structures in ${{\mathit K}^{-}}$ Nucleon Total Cross Sections below 1.1 ${\mathrm {GeV/}}\mathit c$ HEPP 1976B PL 65B 487 New Data on the Reaction ${{\mathit K}^{-}}$ ${{\mathit n}}$ $\rightarrow$ ( ${{\mathit \Sigma}}{{\mathit \pi}}){}^{-}$ and a Partial Wave Analysis of ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$ in the Energy Range $1520 - 1745$ MeV KANE 1974 LBL-2452 LBL-2452