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

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 Older, outdated results have been omitted.

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

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
1975B
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 ${{\mathit \Sigma}^{\pm}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit e}^{\pm}}{{\mathit \nu}}$