#### ${{\mathit \Sigma}{(1670)}}$ WIDTH

VALUE (MeV) DOCUMENT ID TECN  COMMENT
 $\bf{ 40\text{ to }100\text{ }(\approx70) }$ OUR ESTIMATE
$54$ $\pm6$
 2019
DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel
$55$ $\pm4$
 2013 A
DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel
$52$ ${}^{+5}_{-2}$
 2012
DPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}}$
$65.0$ $\pm7.3$
 1985
DPWA ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$
$79$ $\pm10$
 1980
DPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\overline{\mathit K}}}{{\mathit N}}$
$56$ $\pm20$
 1978
DPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\overline{\mathit K}}}{{\mathit N}}$
$50$ $\pm5$
 1977
DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel
$56$ $\pm3$
 1976 B
DPWA ${{\mathit K}^{-}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$
$85$ $\pm25$
 1975
IPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}}$
$32$ $\pm11$
 1975
DPWA ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{0}}$
$79$ $\pm6$
 1974
DPWA ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$46$ or $46$ 1
 1977
DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel
$80$
 1976
IPWA ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{0}}$
$44$ $\pm11$
 1975
DPWA ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{0}}$ (sol. 1)
$76$ $\pm5$
 1975
DPWA ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{0}}$ (sol. 2)
 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
 GAO 2012
PR C86 025201 ${{\mathit \Sigma}}$ Resonances from ${{\mathit K}^{-}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \Lambda}}$ Reactions with Center-of-Mass Energies from 1550 to 1676 MeV
 Also
NP A867 41 Analysis of the New Crystal Ball Data on ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \Lambda}}$ Reaction with Beam Momenta of $514 - 750$ MeV/$\mathit c$
 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
 DEBELLEFON 1976
NP B109 129 Reaction ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{0}}$ : Zeroes and Partial Waves from 0.4 to 2.5 ${\mathrm {GeV/}}\mathit c$
 Also
NP B90 1 New Data on the Reaction ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{0}}$ from 1.934 to 2.516 ${\mathrm {GeV/}}\mathit c$ and Partial Wave Analysis for this Reaction, between 2070 and 2436 MeV $\mathit E_{{\mathrm {cm}}}$
 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
 BAILLON 1975
NP B94 39 Energy Independent Partial Wave Analysis of ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}}$ between 1540 and 2150 MeV
 PONTE 1975
PR D12 2597 Reaction ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{0}}$ from 1647 to 1715 MeV
 VANHORN 1975
NP B87 145 Energy Dependent Partial Wave Analysis of ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{0}}$ between 1540 and 2215 MeV
 Also
NP B87 157 Resonance Ambiguities, Barrelet Zeros, and Duality in ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{0}}$
 KANE 1974
LBL-2452 LBL-2452