The production of strange particles ${\mathrm{\Xi }}_c^{+},K^{-}$ is simulated in $pp$ collisions at $\sqrt{s}=7$ TeV at mid-rapidity with $0.2\le p_T\le 6$ $\mathrm{GeV}/c$ using the paciae model. The results are consistent with LHCb experimental data on ${\mathrm{\Xi }}_c^{+}$ and $K^{-}$ yield. Then, a dynamically constrained phase-space coalescence model plus paciae model was used to produce the ${\mathrm{\Xi }}_c^{+}{K}^{-}$ bound states and study the narrow excited ${\mathrm{\Omega }}_c^0$ states through ${\mathrm{\Omega }}_c^0\to {\mathrm{\Xi }}_c^{+}{K}^{-}$ in $pp$ collisions at $\sqrt{s}=7$ and 13 TeV. The yield, transverse momentum distribution, and rapidity distribution of the five new excited ${\mathrm{\Omega }}_c^0$ states of ${\mathrm{\Omega }}_c{\left(3000\right)}^0$, ${\mathrm{\Omega }}_c{\left(3050\right)}^0$, ${\mathrm{\Omega }}_c{\left(3066\right)}^0$, ${\mathrm{\Omega }}_c{\left(3090\right)}^0$, and ${\mathrm{\Omega }}_c{\left(3119\right)}^0$ were predicted.

• Received 26 June 2020
• Revised 20 September 2020
• Accepted 30 October 2020

DOI:https://doi.org/10.1103/PhysRevC.102.054319