${{\mathit \Xi}^{0}}$ DECAY PARAMETERS

See the ``Note on Baryon Decay Parameters'' in the neutron Listings.

$\mathit g_{2}(0)/\mathit f_{1}$(0)) FOR ${{\mathit \Xi}^{0}}$ $\rightarrow$ ${{\mathit \Sigma}^{+}}{{\mathit e}^{-}}{{\overline{\mathit \nu}}_{{e}}}$

INSPIRE search
VALUE EVTS DOCUMENT ID TECN  COMMENT
$-1.7$ ${}^{+2.1}_{-2.0}$ $\pm0.5$ 487 1
ALAVI-HARATI
2001I
KTEV ${{\mathit p}}$ nucleus, 800 GeV
1  ALAVI-HARATI 2001I thus assumes that $\mathit g_{2}$ = 0 in calculating $\mathit g_{1}/\mathit f_{1}$, above.
References:
ALAVI-HARATI 2001I
PRL 87 132001 First Measurement of Form Factors of the Decay ${{\mathit \Xi}^{0}}$ $\rightarrow$ ${{\mathit \Sigma}^{+}}{{\mathit e}^{-}}{{\overline{\mathit \nu}}_{{e}}}$