# ${{\boldsymbol \Lambda}{(1670)}}$ WIDTH INSPIRE search

VALUE (MeV) DOCUMENT ID TECN  COMMENT
$\bf{ 25\text{ to }35\text{ }(\approx30) }$ OUR ESTIMATE
$33$ $\pm4$
 2019
DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel
$29$ $\pm5$
 2013 A
DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel
$34.1$ $\pm3.7$
 1985
DPWA ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$
$29$ $\pm5$
 1980
DPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\overline{\mathit K}}}{{\mathit N}}$
$29$ $\pm5$
 1978
DPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\overline{\mathit K}}}{{\mathit N}}$
$46$ $\pm5$
 1976 B
DPWA ${{\mathit K}^{-}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$
$40$ $\pm3$
 1974
DPWA ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$
$19$ $\pm5$
 1974
DPWA ${{\mathit K}^{-}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \Sigma}{(1385)}}{{\mathit \pi}}$
• • • We do not use the following data for averages, fits, limits, etc. • • •
$23$ $\pm6$
 2002
DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel
$21.1$ $\pm3.6$
 1996
DPWA ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \eta}}$
$45$ $\pm10$
 1977
DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel
$12$ 1
 1977
DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel
1  MARTIN 1977 obtains identical resonance parameters 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
 MANLEY 2002
PRL 88 012002 Properties of the ${{\mathit \Lambda}{(1670)}}{1\over 2}{}^{\text{-}}$ Resonance
 ABAEV 1996
PR C53 385 ${\mathit S}{\mathrm -wave}$ Resonance Coupled-Channel Approach to the Reactions ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit n}}$ and ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \Lambda}}$ , and a Determination of the ${{\mathit \eta}}{{\mathit n}}$ and ${{\mathit \eta}}{{\mathit \Lambda}}$ Scattering Lengths
 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 ${\mathrm {MeV}}/\mathit c$
 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
 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
 PREVOST 1974
NP B69 246 A Study of the Reactions ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \Sigma}{(1385)}}{{\mathit \pi}}$ between 0.6 and 1.2 ${\mathrm {GeV/}}\mathit c$