# ${{\boldsymbol \Lambda}}$ MEAN LIFE

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

# (${\boldsymbol \tau}_{{{\boldsymbol \Lambda}}}–{\boldsymbol \tau}_{{{\overline{\boldsymbol \Lambda}}}}$) $/$ ${\boldsymbol \tau}_{{{\boldsymbol \Lambda}}}$ INSPIRE search

A test of $\mathit CPT$ invariance.

VALUE DOCUMENT ID TECN  COMMENT
$\bf{ -0.001 \pm0.009}$ OUR AVERAGE
$-0.0018$ $\pm0.0066$ $\pm0.0056$
 1996
CNTR LEAR ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\overline{\mathit \Lambda}}}{{\mathit \Lambda}}$
$0.044$ $\pm0.085$
 1967
HBC 2.4 ${\mathrm {GeV/}}\mathit c$ ${{\overline{\mathit p}}}{{\mathit p}}$
Conservation Laws:
 $\mathit CPT$ INVARIANCE
References:
 BARNES 1996
PR C54 1877 Observables in High Statistics Measurements of the Reaction ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\overline{\mathit \Lambda}}}{{\mathit \Lambda}}$
PL 25B 152 Reactions ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\overline{\mathit \Lambda}}}{{\mathit \Lambda}}$ at 2.5 ${\mathrm {GeV/}}\mathit c$