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${{\mathit \Lambda}{(1405)}}$ MASS

PRODUCTION EXPERIMENTS

INSPIRE   PDGID:

B037M1

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 1405.1 {}^{+1.3}_{-1.0}}$ OUR AVERAGE $1405$ ${}^{+11}_{-9}$ HASSANVAND 2013 SPEC ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \Lambda}{(1405)}}{{\mathit K}^{+}}$ $1405$ ${}^{+1.4}_{-1.0}$ ESMAILI 2010 RVUE ${}^{4}\mathrm {He}$ ${{\mathit K}^{-}}$ $\rightarrow$ ${{\mathit \Sigma}^{\pm}}{{\mathit \pi}^{\mp}}{{\mathit X}}$ at rest $1406.5$ $\pm4.0$ 1 DALITZ 1991 M-matrix fit • • We do not use the following data for averages, fits, limits, etc. • • $1391$ $\pm1$ 700 1 HEMINGWAY 1985 HBC ${{\mathit K}^{-}}{{\mathit p}}$ 4.2 ${\mathrm {GeV/}}\mathit c$ $\sim$$1405$ 400 2 THOMAS 1973 HBC ${{\mathit \pi}^{-}}{{\mathit p}}$ 1.69 ${\mathrm {GeV/}}\mathit c$ $1405$ 120 BARBARO-GALTI.. 1968 B DBC ${{\mathit K}^{-}}{{\mathit d}}$ 2.1$-$2.7 ${\mathrm {GeV/}}\mathit c$ $1400$ $\pm5$ 67 BIRMINGHAM 1966 HBC ${{\mathit K}^{-}}{{\mathit p}}$ 3.5 ${\mathrm {GeV/}}\mathit c$ $1382$ $\pm8$ ENGLER 1965 HDBC ${{\mathit \pi}^{-}}{{\mathit p}}$, ${{\mathit \pi}^{+}}{{\mathit d}}$ 1.68 ${\mathrm {GeV/}}\mathit c$ $1400$ $\pm24$ MUSGRAVE 1965 HBC ${{\overline{\mathit p}}}{{\mathit p}}$ 3$-$4 ${\mathrm {GeV/}}\mathit c$ $1410$ ALEXANDER 1962 HBC ${{\mathit \pi}^{-}}{{\mathit p}}$ 2.1 ${\mathrm {GeV/}}\mathit c$ $1405$ ALSTON 1962 HBC ${{\mathit K}^{-}}{{\mathit p}}$ 1.2$-$0.5 ${\mathrm {GeV/}}\mathit c$ $1405$ ALSTON 1961 B HBC ${{\mathit K}^{-}}{{\mathit p}}$ 1.15 ${\mathrm {GeV/}}\mathit c$ 1  DALITZ 1991 fits the HEMINGWAY 1985 data. 2  THOMAS 1973 data is fit by CHAO 1973 (see next section).

References

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