${\mathrm{\Omega }}_c$ baryon spectrum and strong decays in a constituent quark model

In this work, we study the masses of the $1S$-, $1P$-, $1D$-, $2S$-, and $2P$-wave ${\mathrm{\Omega }}_c$ baryon states within a semi-relativistic constituent quark potential model. Furthermore, the strong decay properties for the excited ${\mathrm{\Omega }}_c$ states are evaluated by using the masses and wave functions obtained from the potential model. In a unified framework, we provide a reasonable explanation of both the masses and widths for the newly observed ${\mathrm{\Omega }}_c$ resonances ${\mathrm{\Omega }}_c(3000)$, ${\mathrm{\Omega }}_c(3050)$, ${\mathrm{\Omega }}_c(3065)$, ${\mathrm{\Omega }}_c(3090)$, ${\mathrm{\Omega }}_c(3120)$, ${\mathrm{\Omega }}_c(3185)$, and ${\mathrm{\Omega }}_c(3327)$. Based on the obtained decay properties and mass spectrum, we further suggest optimal channels and mass regions to find the missing ${\mathrm{\Omega }}_c$ resonances. We expect our study can provide a useful reference for establishing the ${\mathrm{\Omega }}_c$ spectrum.