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${{\mathit \Omega}}$ BARYONS ($\mathit S$ = $-3$, $\mathit I$ = 0) ${{\mathit \Omega}^{-}}$ = ${\mathit {\mathit s}}$ ${\mathit {\mathit s}}$ ${\mathit {\mathit s}}$

INSPIRE   JSON PDGID: B179

${{\mathit \Omega}{(2012)}^{-}}$ $I(J^P)$ = $0(?^{-})$

Seen in ${{\mathit \Xi}^{0}}{{\mathit K}^{-}}$ and ${{\mathit \Xi}^{-}}{{\mathit K}_S^0}$ decays with a combined significance of 8.3 standard deviations. BELLE results from JIA 2019 and JIA 2025 are incompatible. JIA 2025 claims the older analysis was based on an inaccurate model for decays.

${{\mathit \Omega}{(2012)}^{-}}$ MASS   $2012.9 \pm0.4$ MeV

${{\mathit \Omega}{(2012)}^{-}}$ WIDTH   $6.3 \pm2.0$ MeV

${{\mathit \Omega}{(2012)}^{-}}$ DECAY MODES
Mode   Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/ Conf. Level P(MeV/c)   $\Gamma_{1}$ ${{\mathit \Xi}}{{\mathit K}}$   403   $\Gamma_{2}$ ${{\mathit \Xi}^{0}}{{\mathit K}^{-}}$   $(34^{+17}_{-12})\%$ 403   $\Gamma_{3}$ ${{\mathit \Xi}^{-}}{{\overline{\mathit K}}^{0}}$   $(28^{+12}_{-7})\%$ 393   $\Gamma_{4}$ ( ${{\mathit \Xi}}{{\mathit \pi}}$) ${{\mathit K}}$   246   $\Gamma_{5}$ ${{\mathit \Xi}^{-}}{{\mathit \pi}^{+}}{{\mathit K}^{-}}$   seen 225
FOOTNOTES