${{\mathit \Xi}}$ BARYONS
($\mathit S$ = $-2$, $\mathit I$ = 1/2)
${{\mathit \Xi}^{0}}$ = ${\mathit {\mathit u}}$ ${\mathit {\mathit s}}$ ${\mathit {\mathit s}}$, ${{\mathit \Xi}^{-}}$ = ${\mathit {\mathit d}}$ ${\mathit {\mathit s}}$ ${\mathit {\mathit s}}$
INSPIRE   JSON PDGID:
S023

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

$I(J^P)$ = $1/2(1/2^{+})$ 
The parity has not actually been measured, but ${}^{}{}^{+}$ is of course expected.
See related review:
Radiative Hyperon Decays
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${{\mathit \Xi}^{0}}$ MASS $1314.82$ $\pm0.21$ MeV 
 
${\mathit m}_{{{\mathit \Xi}^{-}}}-{\mathit m}_{{{\mathit \Xi}^{0}}}$ $6.3$ $\pm0.7$ MeV 
 
${{\mathit \Xi}^{0}}$ MEAN LIFE ($2.90$ $\pm0.09$) $ \times 10^{-10}$ s 
 
${{\mathit \Xi}^{0}}$ MAGNETIC MOMENT $-1.250$ $\pm0.014$ $\mu _{\mathit N}$ 
 
▸  ${{\mathit \Xi}^{0}}$ DECAY PARAMETERS
Mode  
Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level
P(MeV/c)  
$\Gamma_{1}$ ${{\mathit \Lambda}}{{\mathit \pi}^{0}}$ ($99.524$ $\pm0.012$ ) $\%$ 135
 
$\Gamma_{2}$ ${{\mathit \Lambda}}{{\mathit \gamma}}$ ($1.17$ $\pm0.07$) $ \times 10^{-3}$ 184
 
$\Gamma_{3}$ ${{\mathit \Lambda}}{{\mathit e}^{+}}{{\mathit e}^{-}}$ ($7.6$ $\pm0.6$) $ \times 10^{-6}$ 184
 
$\Gamma_{4}$ ${{\mathit \Sigma}^{0}}{{\mathit \gamma}}$ ($3.33$ $\pm0.10$) $ \times 10^{-3}$ 117
 
$\Gamma_{5}$ ${{\mathit \Sigma}^{+}}{{\mathit e}^{-}}{{\overline{\mathit \nu}}_{{{e}}}}$ ($2.52$ $\pm0.08$) $ \times 10^{-4}$ 120
 
$\Gamma_{6}$ ${{\mathit \Sigma}^{+}}{{\mathit \mu}^{-}}{{\overline{\mathit \nu}}_{{{\mu}}}}$ ($2.33$ $\pm0.35$) $ \times 10^{-6}$ 64
 
▸  $\Delta \mathit S$ = $\Delta \mathit Q$ ($\mathit SQ$) violating modes or $\Delta \mathit S$ = 2 forbidden ($\mathit S2$) modes
Constrained Fit information