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${{\mathit \Lambda}{(1690)}}$ WIDTH

INSPIRE   PDGID:

B055W

VALUE (MeV) DOCUMENT ID TECN  COMMENT $\bf{ 60\text{ to }80\text{ }(\approx70) }$ OUR ESTIMATE $75$ $\pm5$ SARANTSEV 2019 DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $54$ $\pm5$ ZHANG 2013 A DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $67.2$ $\pm5.6$ KOISO 1985 DPWA ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$ $61$ $\pm5$ GOPAL 1980 DPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\overline{\mathit K}}}{{\mathit N}}$ $64$ $\pm10$ ALSTON-GARNJO.. 1978 DPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\overline{\mathit K}}}{{\mathit N}}$ $82$ $\pm8$ HEPP 1976 B DPWA ${{\mathit K}^{-}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$ $60$ $\pm4$ KANE 1974 DPWA ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$ • • We do not use the following data for averages, fits, limits, etc. • • $60$ $\pm5$ GOPAL 1977 DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $62$ or $62$ 1 MARTIN 1977 DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $38$ CARROLL 1976 DPWA Isospin-0 total $\sigma{}$ 1  The two MARTIN 1977 values are from a T-matrix pole and from a Breit-Wigner fit. Another ${\mathit D}_{\mathrm 03}{{\mathit \Lambda}}$ at 1966 MeV is also suggested by MARTIN 1977, but is very uncertain.

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