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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.

$\alpha _{+}$ $/$ $\alpha _{0}$

INSPIRE   PDGID:

S019A+0

Older results have been omitted.

VALUE EVTS DOCUMENT ID TECN  COMMENT $\bf{ -0.069 \pm0.013}$ OUR FIT $-0.073$ $\pm0.021$ 23k MARRAFFINO 1980 HBC ${{\mathit K}^{-}}{{\mathit p}}$ 0.42$-$0.5 ${\mathrm {GeV/}}\mathit c$

References:

MARRAFFINO 1980 PR D21 2501 New Measurement of ${{\mathit \Sigma}}$ Decay Properties and a Test of the ${{\mathit \Delta}}\mathit I={1\over 2}$ Rule

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