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${{\mathit \Lambda}{(1800)}}$ WIDTH

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B036W

VALUE (MeV) DOCUMENT ID TECN  COMMENT $\bf{ 150\text{ to }250\text{ }(\approx200) }$ OUR ESTIMATE $209$ $\pm18$ SARANTSEV 2019 DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $256$ $\pm35$ ZHANG 2013 A DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $228$ $\pm20$ GOPAL 1980 DPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\overline{\mathit K}}}{{\mathit N}}$ $185$ $\pm20$ ALSTON-GARNJO.. 1978 DPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\overline{\mathit K}}}{{\mathit N}}$ $70$ $\pm15$ LANGBEIN 1972 IPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel • • We do not use the following data for averages, fits, limits, etc. • • $518$ $\pm84$ MANLEY 2002 DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $230$ $\pm20$ GOPAL 1977 DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $435$ or $473$ 1 MARTIN 1977 DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $40$ KIM 1971 DPWA K-matrix analysis $100$ $\pm20$ BRICMAN 1970 B DPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\overline{\mathit K}}}{{\mathit N}}$ 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 MANLEY 2002 PRL 88 012002 Properties of the ${{\mathit \Lambda}{(1670)}}{1\over 2}{}^{\text{-}}$ Resonance 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 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 ${\mathrm {MeV}}/\mathit c$ BRICMAN 1970B PL 33B 511 ${{\overline{\mathit K}}}{{\mathit N}}$ Elastic Amplitudes between 1 and 1.3 ${\mathrm {GeV/}}\mathit c$