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${{\mathit \Lambda}}$ DECAY PARAMETERS

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

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

INSPIRE   PDGID:

S018F-

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

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