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${{\mathit \Lambda}}$ MEAN LIFE

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S018T

Measurements with an error ${}\geq{}$ $0.1 \times 10^{-10}$ s have been omitted altogether, and only the highest-statistics are used.

VALUE ($ 10^{-10} $ s) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 2.617 \pm0.010}$ OUR AVERAGE  Error includes scale factor of 1.5.  See the ideogram below. $2.6107$ $\pm0.0037$ $\pm0.0072$ 188M ACHARYA 2023 ALCE Pb-Pb $\rightarrow$ ${{\mathit \Lambda}}{{\mathit X}}$ or ${{\overline{\mathit \Lambda}}}{{\mathit X}}$ at 5.02 TeV $2.69$ $\pm0.03$ 53k ZECH 1977 SPEC Neutral hyperon beam $2.611$ $\pm0.020$ 34k CLAYTON 1975 HBC 0.96$-$1.4 ${\mathrm {GeV/}}\mathit c$ ${{\mathit K}^{-}}{{\mathit p}}$ $2.626$ $\pm0.020$ 36k POULARD 1973 HBC 0.4$-$2.3 ${\mathrm {GeV/}}\mathit c$ ${{\mathit K}^{-}}{{\mathit p}}$ • • We do not use the following data for averages, fits, limits, etc. • • $2.69$ $\pm0.05$ 6582 ALTHOFF 1973 B OSPK ${{\mathit \pi}^{+}}$ ${{\mathit n}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit K}^{+}}$ $2.54$ $\pm0.04$ 4572 BALTAY 1971 B HBC ${{\mathit K}^{-}}{{\mathit p}}$ at rest $2.535$ $\pm0.035$ 8342 GRIMM 1968 HBC $2.47$ $\pm0.08$ 2600 HEPP 1968 HBC $2.35$ $\pm0.09$ 916 BURAN 1966 HLBC $2.452$ ${}^{+0.056}_{-0.054}$ 2213 ENGELMANN 1966 HBC $2.59$ $\pm0.09$ 794 HUBBARD 1964 HBC $2.59$ $\pm0.07$ 1378 SCHWARTZ 1964 HBC $2.36$ $\pm0.06$ 2239 BLOCK 1963 HEBC

${{\mathit \Lambda}}$ mean life (${10^{-10}}$s)

References