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${{\mathit \Sigma}{(1620)}}$ WIDTH

INSPIRE   PDGID:

B032W

VALUE (MeV) DOCUMENT ID TECN  COMMENT $\bf{ 40\text{ to }100\text{ }(\approx70) }$ OUR ESTIMATE $40$ $\pm12$ SARANTSEV 2019 DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $400$ $\pm152$ ZHANG 2013 A DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $87$ $\pm19$ 1 MORRIS 1978 DPWA ${{\mathit K}^{-}}$ ${{\mathit n}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{-}}$ $15$ 2 CARROLL 1976 DPWA Isospin-1 total $\sigma{}$ $65$ $\pm20$ LANGBEIN 1972 IPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $40$ KIM 1971 DPWA K-matrix analysis • • We do not use the following data for averages, fits, limits, etc. • • $10$ 3 CARROLL 1976 DPWA Isospin-1 total $\sigma{}$ 1  MORRIS 1978 obtains an equally good fit without including this resonance. 2  Total cross-section bump with ($\mathit J$+1/2) $\Gamma _{{\mathrm {el}}}$ $/$ $\Gamma _{{\mathrm {total}}}$ is 0.06 seen by CARROLL 1976 . 3  Total cross-section bump with ($\mathit J$+1/2) $\Gamma _{{\mathrm {el}}}$ $/$ $\Gamma _{{\mathrm {total}}}$ is 0.04 seen by CARROLL 1976 .

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 MORRIS 1978 PR D17 55 Reaction ${{\mathit K}^{-}}$ ${{\mathit n}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{-}}$ from 1550 to 1650 MeV CARROLL 1976 PRL 37 806 Structures in ${{\mathit K}^{-}}$ Nucleon Total Cross Sections below 1.1 ${\mathrm {GeV/}}\mathit c$ LANGBEIN 1972 NP B47 477 An Energy Independent Coupled Channel Phase Shift Analysis for the ${{\overline{\mathit K}}}{{\mathit N}}$ System KIM 1971 PRL 27 356 ${{\overline{\mathit K}}}{{\mathit N}}$ Interaction in the Region 0 to 1200 ${\mathrm {MeV}}/\mathit c$ and Hyperon Resonances Also Duke Conf. 161 Multichannel ${{\mathit K}}$ Matrix Analysis of ${{\overline{\mathit K}}}{{\mathit N}}$ Interaction in the Region 0 to 1200 ${\mathrm {MeV}}/\mathit c$