${{\mathit \Sigma}^{-}}$ MEAN LIFE

INSPIRE   PDGID:
S020T
Measurements with an error ${}\geq{}$ $0.2 \times 10^{-10}$ s have been omitted.
VALUE ($ 10^{-10} $ s) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 1.479 \pm0.011}$ OUR AVERAGE  Error includes scale factor of 1.3.  See the ideogram below.
$1.480$ $\pm0.014$ 16k
MARRAFFINO
1980
HBC ${{\mathit K}^{-}}{{\mathit p}}$ 0.42$-$0.5 ${\mathrm {GeV/}}\mathit c$
$1.49$ $\pm0.03$ 8437
CONFORTO
1976
HBC ${{\mathit K}^{-}}{{\mathit p}}$ 1$-$1.4 ${\mathrm {GeV/}}\mathit c$
$1.463$ $\pm0.039$ 2400
ROBERTSON
1972
HBC ${{\mathit K}^{-}}{{\mathit p}}$ 0.25 ${\mathrm {GeV/}}\mathit c$
$1.42$ $\pm0.05$ 1383
BAKKER
1971
DBC ${{\mathit K}^{-}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \Sigma}^{-}}{{\mathit \pi}}{{\mathit \pi}}$
$1.41$ ${}^{+0.09}_{-0.08}$
TOVEE
1971
EMUL
$1.485$ $\pm0.022$ 100k
EISELE
1970
HBC ${{\mathit K}^{-}}{{\mathit p}}$ at rest
$1.472$ $\pm0.016$ 10k
BARLOUTAUD
1969
HBC ${{\mathit K}^{-}}{{\mathit p}}$ 0.4$-$1.2 ${\mathrm {GeV/}}\mathit c$
$1.38$ $\pm0.07$ 506
WHITESIDE
1968
HBC ${{\mathit K}^{-}}{{\mathit p}}$ at rest
$1.666$ $\pm0.075$ 3267 1
CHANG
1966
HBC ${{\mathit K}^{-}}{{\mathit p}}$ at rest
$1.58$ $\pm0.06$ 1208
HUMPHREY
1962
HBC ${{\mathit K}^{-}}{{\mathit p}}$ at rest
1  We have increased the CHANG 1966 error of 0.026; see our 1970 edition, Reviews of Modern Physics 42 87 (1970).

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