#### ${{\mathit \Lambda}{(1820)}}$ WIDTH

VALUE (MeV) DOCUMENT ID TECN  COMMENT
 $\bf{ 70\text{ to }90\text{ }(\approx80) }$ OUR ESTIMATE
$80$ $\pm8$
 2019
DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel
$89$ $\pm2$
 2013 A
DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel
$77$ $\pm5$
 1980
DPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\overline{\mathit K}}}{{\mathit N}}$
$72$ $\pm5$
 1978
DPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\overline{\mathit K}}}{{\mathit N}}$
$87$ $\pm3$
 1974
DPWA ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$82$
 1977
DPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\overline{\mathit K}}}{{\mathit N}}$
$81$ $\pm5$
 1977
DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel
$76$ or $76$ 1
 1977
DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel
 1 The two MARTIN 1977 values are from a T-matrix pole and from a Breit-Wigner fit.
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
 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
 DECLAIS 1977
CERN 77-16 ${{\mathit K}^{-}}{{\mathit n}}$ and ${{\mathit K}^{-}}{{\mathit p}}$ Elastic Scattering in ${{\mathit K}^{-}}{{\mathit d}}$ Collisions from 1.2 to 2.2 ${\mathrm {GeV/}}\mathit c$
 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
 KANE 1974
LBL-2452 LBL-2452