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

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

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

INSPIRE   PDGID:
S023AH
VALUE EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 1.22 \pm0.05}$ OUR AVERAGE
$1.21$ $\pm0.05$
BATLEY
2013
NA48 ${{\mathit p}}{}^{}\mathrm {Be}$, 400 GeV
$1.32$ ${}^{+0.21}_{-0.17}$ $\pm0.05$ 487 1
ALAVI-HARATI
2001I
KTEV ${{\mathit p}}$ nucleus, 800 GeV
• • We do not use the following data for averages, fits, limits, etc. • •
$1.20$ $\pm0.04$ $\pm0.03$ 6520 2
BATLEY
2007
NA48 See BATLEY 2013
1  ALAVI-HARATI 2001I assumes here that the second-class current is zero and that the weak-magnetism term takes its exact SU(3) value.
2  This BATLEY 2007 result uses our 2006 value of ${\it V}_{\it us}$ from semileptonic kaon decays as input.
References