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${{\mathit \Sigma}^{-}}$ DECAY PARAMETERS

See the ``Note on Baryon Decay Parameters'' in the neutron Listings. Older, outdated results have been omitted.

${\mathit g}_{\mathit WM}/{\mathit g}_{{{\mathit A}}}$ FOR ${{\mathit \Sigma}^{-}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit e}^{-}}{{\overline{\mathit \nu}}_{{e}}}$

INSPIRE   PDGID:

S020WM

The values quoted assume the CVC prediction ${\mathit g}_{{{\mathit V}}}$ = 0.

VALUE EVTS DOCUMENT ID TECN  COMMENT $\bf{ 2.4 \pm1.7}$ OUR AVERAGE $1.75$ $\pm3.5$ 114 THOMPSON 1980 ASPK BNL hyperon beam $3.5$ $\pm4.5$ 55 TANENBAUM 1975 B SPEC BNL hyperon beam $2.4$ $\pm2.1$ 186 FRANZINI 1972 HBC

References:

THOMPSON 1980 PR D21 25 Studies in the BNL 21 ${\mathrm {GeV/}}\mathit c$ Negative Hyperon Beam. II. Leptonic Decays of ${{\mathit \Sigma}}$ and ${{\mathit \Xi}}$ TANENBAUM 1975B PR D12 1871 Leptonic Decays of the ${{\mathit \Sigma}^{-}}$ and ${{\mathit \Xi}^{-}}$ Hyperons FRANZINI 1972 PR D6 2417 Decay ${{\mathit \Sigma}^{\pm}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit e}^{\pm}}{{\mathit \nu}}$

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