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

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

$\phi _{0}$ ANGLE FOR ${{\boldsymbol \Sigma}^{+}}$ $\rightarrow$ ${{\boldsymbol p}}{{\boldsymbol \pi}^{0}}$ ($\phi _{0}$ = $\beta /\gamma $) INSPIRE search

VALUE ($^\circ{}$)

EVTS

DOCUMENT ID

TECN

COMMENT

$\bf{ 36 \pm34}$

OUR AVERAGE

$38.1$ ${}^{+35.7}_{-37.1}$

1259

LIPMAN

1973

OSPK

${{\mathit \pi}^{+}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Sigma}^{+}}{{\mathit K}^{+}}$

$22$ $\pm90$

HARRIS

1970

OSPK

${{\mathit \pi}^{+}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Sigma}^{+}}{{\mathit K}^{+}}$

¹ Decay proton scattered off aluminum.

² Decay protons scattered off carbon.

References:

LIPMAN

1973

PL 43B 89

Test of the ${{\mathit \Delta}}\mathit I={1\over 2}$ Rule and the Lee-Sugawara Relation in the Decay ${{\mathit \Sigma}^{+}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \pi}^{0}}$

HARRIS

1970

PRL 24 165

Proton Polarization in ${{\mathit \Sigma}^{+}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \pi}^{0}}$