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${{\mathit \Lambda}{(1670)}}$ MASS

INSPIRE   PDGID:

B040M

VALUE (MeV) DOCUMENT ID TECN  COMMENT $\bf{ 1670\text{ to }1678\text{ }(\approx1674) }$ OUR ESTIMATE $1674.3$ $\pm0.8$ $\pm4.9$ LEE 2021 A BELL ${{\mathit \Lambda}_{{c}}^{+}}$ $\rightarrow$ ${{\mathit \Lambda}{(1670)}}{{\mathit \pi}^{+}}$ $1677$ $\pm2$ SARANTSEV 2019 DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $1672$ $\pm3$ ZHANG 2013 A DPWA Multichannel $1670.8$ $\pm1.7$ KOISO 1985 DPWA ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$ $1667$ $\pm5$ GOPAL 1980 DPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\overline{\mathit K}}}{{\mathit N}}$ $1671$ $\pm3$ ALSTON-GARNJO.. 1978 DPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\overline{\mathit K}}}{{\mathit N}}$ $1675$ $\pm2$ HEPP 1976 B DPWA ${{\mathit K}^{-}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$ $1679$ $\pm1$ KANE 1974 DPWA ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$ $1665$ $\pm5$ PREVOST 1974 DPWA ${{\mathit K}^{-}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \Sigma}{(1385)}}{{\mathit \pi}}$ • • We do not use the following data for averages, fits, limits, etc. • • $1673$ $\pm2$ MANLEY 2002 DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $1668.9$ $\pm2.0$ ABAEV 1996 DPWA ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \eta}}$ $1670$ $\pm5$ GOPAL 1977 DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $1664$ 1 MARTIN 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:

LEE 2021A PR D103 052005 Measurement of branching fractions of $\Lambda_{c}^{+} \rightarrow \eta\Lambda\pi^{+}$, $\eta \Sigma^{0} \pi^{+}$, $\Lambda(1670) \pi^{+}$, and $\eta \Sigma(1385)^{+}$ 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 ${\mathrm {MeV}}/\mathit c$ 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 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 ${\mathrm {GeV/}}\mathit c$