Analysis of ${\mathrm{\Omega }}_b^{-}(bss)$ and ${\mathrm{\Omega }}_c^0(css)$ with QCD sum rules

In this article, we calculate the masses and the pole residues of the ${1\mathrm{/}2}^{+}$ heavy baryons ${\mathrm{\Omega }}_c^0(css)$ and ${\mathrm{\Omega }}_b^{-}(bss)$ with the QCD sum rules. The numerical values $M_{{\mathrm{\Omega }}_c^0}=(2.72\pm 0.18)\mathrm{G}\mathrm{e}\mathrm{V}$ (or $M_{{\mathrm{\Omega }}_c^0}=(2.71\pm 0.18)\mathrm{G}\mathrm{e}\mathrm{V}$) and $M_{\Omega_b^-}=(6.13\pm0.12) \rm{GeV}$(or$M_{\Omega_b^-}=(6.18\pm0.13) \rm{GeV}$) are in good agreement with the experimental data.