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${{\mathit \Sigma}{(1670)}}$ WIDTH (PRODUCTION EXPERIMENTS)

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B051W

VALUE (MeV) EVTS DOCUMENT ID TECN CHG  COMMENT $67.0$ $\pm2.4$ APSELL 1974 HBC ${{\mathit K}^{-}}{{\mathit p}}$ 2.87 ${\mathrm {GeV/}}\mathit c$ $110$ $\pm12$ AGUILAR-BENIT.. 1970 B HBC ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}{{\mathit \pi}}$ 4 GeV $135$ ${}^{+40}_{-30}$ AGUILAR-BENIT.. 1970 B HBC ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Sigma}}$3 ${{\mathit \pi}}$ 4 GeV $40$ $\pm10$ ALVAREZ 1963 HBC + • • We do not use the following data for averages, fits, limits, etc. • • $90$ $\pm20$ 150 1 FERRERSORIA 1981 OMEG - ${{\mathit \pi}^{-}}{{\mathit p}}$ 9,12 ${\mathrm {GeV/}}\mathit c$ $52$ 2 CARROLL 1976 DPWA Isospin-1 total $\sigma{}$ $48\text{ to }63 $ TIMMERMANS 1976 HBC + ${{\mathit K}^{-}}{{\mathit p}}$ 4.2 ${\mathrm {GeV/}}\mathit c$ $30$ $\pm15$ BUGG 1968 CNTR $60$ $\pm20$ 70 PRIMER 1968 HBC + See BARNES 1969E $45$ ALEXANDER 1962 C HBC -0 1  Backward production in the ${{\mathit \Lambda}}{{\mathit \pi}^{-}}{{\mathit K}^{+}}$ final state. 2  Total cross-section bump with ($\mathit J$+1/2) $\Gamma _{{\mathrm {el}}}$ $/$ $\Gamma _{{\mathrm {total}}}$ = 0.23.

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