${{\boldsymbol \Lambda}}$ DECAY PARAMETERS

See the ``Note on Baryon Decay Parameters'' in the neutron Listings. Some early results have been omitted.

$\phi $ ANGLE FOR ${{\boldsymbol \Lambda}}$ $\rightarrow$ ${{\boldsymbol p}}{{\boldsymbol \pi}^{-}}$ (tan$\phi $ = $\beta $ $/$ $\gamma $) INSPIRE search

VALUE ($^\circ{}$) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ -6.5 \pm3.5}$ OUR AVERAGE
$-7.0$ $\pm4.5$ 10325
CLELAND
1972
OSPK ${{\mathit \Lambda}}$ from ${{\mathit \pi}^{-}}{{\mathit p}}$
$-8.0$ $\pm6.0$ 10130
OVERSETH
1967
OSPK ${{\mathit \Lambda}}$ from ${{\mathit \pi}^{-}}{{\mathit p}}$
$13.0$ $\pm17.0$ 1156
CRONIN
1963
OSPK ${{\mathit \Lambda}}$ from ${{\mathit \pi}^{-}}{{\mathit p}}$
  References:
CLELAND 1972
NP B40 221 A Measurement of the $\beta $-Parameter in the Charged Nonleptonic Decay of the ${{\mathit \Lambda}^{0}}$ Hyperon
OVERSETH 1967
PRL 19 391 Time Reversal Invariance in ${{\mathit \Lambda}}$ Decay
CRONIN 1963
PR 129 1795 Measurement of the Decay Parameters of the ${{\mathit \Lambda}}$ Particle