${{\boldsymbol \Xi}}$ BARYONS($\boldsymbol S$ = $-2$, $\boldsymbol I$ = 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 search

# ${{\boldsymbol \Xi}^{0}}$ $I(J^P)$ = $1/2(1/2^{+})$

The parity has not actually been measured, but ${}^{}{}^{+}$ is of course expected.
 See related review: Radiative Hyperon Decays
 ${{\mathit \Xi}^{0}}$ MASS $1314.86 \pm0.20$ MeV
 ${\mathit m}_{{{\mathit \Xi}^{-}}}–{\mathit m}_{{{\mathit \Xi}^{0}}}$ $6.85 \pm0.21$ MeV
 ${{\mathit \Xi}^{0}}$ MEAN LIFE $(2.90 \pm0.09) \times 10^{-10}$ s
 ${{\mathit \Xi}^{0}}$ MAGNETIC MOMENT $-1.250 \pm0.014$ $\mu _{\mathit N}$
${{\boldsymbol \Xi}^{0}}$ DECAY PARAMETERS
 $\alpha\mathrm {({{\mathit \Xi}^{0}})}$ $\alpha _{−}({{\mathit \Lambda}}$) $-0.261 \pm0.006$
 $\alpha$ FOR ${{\mathit \Xi}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{0}}$ $-0.347 \pm0.010$
 $\phi$ ANGLE FOR ${{\mathit \Xi}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{0}}$ (tan$\phi$ = $\beta /\gamma$) $21 \pm12$ $^\circ{}$
 $\alpha$ FOR ${{\mathit \Xi}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \gamma}}$ $-0.70 \pm0.07$
 $\alpha$ FOR ${{\mathit \Xi}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit e}^{+}}{{\mathit e}^{-}}$ $-0.8 \pm0.2$
 $\alpha$ FOR ${{\mathit \Xi}^{0}}$ $\rightarrow$ ${{\mathit \Sigma}^{0}}{{\mathit \gamma}}$ $-0.69 \pm0.06$
 $\mathit g_{1}(0)/\mathit f_{1}$(0) FOR ${{\mathit \Xi}^{0}}$ $\rightarrow$ ${{\mathit \Sigma}^{+}}{{\mathit e}^{-}}{{\overline{\mathit \nu}}_{{e}}}$ $1.22 \pm0.05$
 $\mathit g_{2}(0)/\mathit f_{1}$(0)) FOR ${{\mathit \Xi}^{0}}$ $\rightarrow$ ${{\mathit \Sigma}^{+}}{{\mathit e}^{-}}{{\overline{\mathit \nu}}_{{e}}}$ $-1.7 \pm2.1$
 $\mathit f_{2}(0)/\mathit f_{1}$(0) FOR ${{\mathit \Xi}^{0}}$ $\rightarrow$ ${{\mathit \Sigma}^{+}}{{\mathit e}^{-}}{{\overline{\mathit \nu}}_{{e}}}$ $2.0 \pm0.9$
 constrained fit information