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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 Older, outdated results have been omitted.

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

VALUE ($^\circ{}$)

EVTS

DOCUMENT ID

TECN

COMMENT

$\bf{ 10 \pm15}$

OUR AVERAGE

$+5$ $\pm23$

1092

HBC

${{\mathit n}}$ rescattering

$14$ $\pm19$

1385

HBC

${{\mathit K}^{-}}{{\mathit p}}$ 0.4 ${\mathrm {GeV/}}\mathit c$

¹	BERLEY 1970B changed from $-5$ to $+5^\circ{}$ to agree with our sign convention.

References:

PR D1 2015

Decay Parameters in the Nonleptonic Decay Modes of the Charged ${{\mathit \Sigma}}$ Hyperons

PR 187 1821

Decay Parameters for ${{\mathit \Sigma}^{\pm}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \pi}^{\pm}}$

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