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

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

$\phi _{+}$ ANGLE FOR ${{\mathit \Sigma}^{+}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \pi}^{+}}$ ($\phi _{+}$ = $\beta /\gamma $)

INSPIRE   PDGID:

S019F+

VALUE ($^\circ{}$) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 167 \pm20}$ OUR AVERAGE  Error includes scale factor of 1.1. $184$ $\pm24$ 1054 1 BERLEY 1970 B HBC $143$ $\pm29$ 560 BANGERTER 1969 B HBC ${{\mathit K}^{-}}{{\mathit p}}$ 0.4 ${\mathrm {GeV/}}\mathit c$ 1  Changed from 176 to 184$^\circ{}$ to agree with our sign convention.

References:

BERLEY 1970B PR D1 2015 Decay Parameters in the Nonleptonic Decay Modes of the Charged ${{\mathit \Sigma}}$ Hyperons BANGERTER 1969B PR 187 1821 Decay Parameters for ${{\mathit \Sigma}^{\pm}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \pi}^{\pm}}$

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