Investigating the excited ${\Omega }_c^0$ states through ${\Xi }_{c}K$ and ${\Xi }_c^{{}^{\prime }}K$ decay channels

Abstract

Inspired by the five newly observed ${\Omega }_c^0$ states by the LHCb detector, we study the ${\Omega }_c^0$ states as the $S-$wave molecular pentaquarks with $I=0$, $J^P={\frac{1}{2}}^{-}$, ${\frac{3}{2}}^{-}$, and ${\frac{5}{2}}^{-}$ by solving the RGM equation in the framework of chiral quark model. Both the energies and the decay widths are obtained in this work. Our results suggest that ${\Omega }_c(3119{)}^0$ can be explained as an $S-$wave resonance state of $\Xi D$ with $J^P={\frac{1}{2}}^{-}$, and the decay channels are the $S-$wave ${\Xi }_{c}K$ and ${\Xi }_c^{{}^{\prime }}K$ . Other reported ${\Omega }_c^0$ states cannot be obtained in our present calculation. Another ${\Omega }_c^0$ state with much higher mass 3533 MeV with $J^P={\frac{5}{2}}^{-}$ is also obtained. In addition, the calculation is extended to the ${\Omega }_b^0$ states, similar results as that of ${\Omega }_c^0$ are obtained.

6 pages, 2 figures

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Cited by in corpus (32)

• An updated review of the new hadron states
• Very narrow excited ${\Omega }_c$ baryons
• Charmed Baryon Physics Circa 2021
• Analysis of the ${\Omega }_c(3000)$, ${\Omega }_c(3050)$, ${\Omega }_c(3066)$, ${\Omega }_c(3090)$ and ${\Omega }_c(3119)$ with QCD sum rules
• Molecular ${\Omega }_c$ states generated from coupled meson-baryon channels
• Charmed baryon spectrum from lattice QCD near the physical point
• Observation of excited ${\Omega }_c^0$ baryons in ${\Omega }_b^{-}\to {\Xi }_c^{+}{K}^{-}{\pi }^{-}$ decays
• Strong and radiative decays of DΞmolecular state and newly observed ${\Omega }_c$ states
• $P$-wave charmed baryons of the $SU(3)$ flavor $6_F$
• Ground and Excited state masses of ${\Omega }_c^0$, ${\Omega }_{cc}^{+}$ and ${\Omega }_{ccc}^{++}$ baryons
• Possible pentaquark candidates: new excited ${\Omega }_c$ states
• Strong decays of the newly observed narrow ${\Omega }_b$ structures
• Hadronic weak decays of the charmed baryon ${\Omega }_c$
• Possible Molecular Pentaquark States with Different Spin and Quark Configurations
• Observed ${\Omega }_b$ spectrum and meson-baryon molecular states
• Identifying the ${\Xi }_c^0$ baryons observed by LHCb as $P$-wave ${\Xi }_c^{\prime }$ baryons
• Heavy Holographic Exotics: Tetraquarks as Efimov States
• Interpretation of excited ${\Omega }_b$ signals
• A Mixing Coupling Scheme for Spectra of Singly Heavy Baryons with Spin-1 Diquarks in P-waves
• ${\mathbf{\Omega }}_{\mathbf{b}}^{-}\to ({\mathbf{\Xi }}_{\mathbf{c}}^{+}{\mathbf{K}}^{-}){\mathbf{\pi }}^{-}$ and the ${\mathbf{\Omega }}_{\mathbf{c}}$ states
• On the nature of ${\Xi }_c(2930)$
• Properties of ${\Sigma }_Q^{\ast }$, ${\Xi }_Q^{\ast }$ and ${\Omega }_Q^{\ast }$ heavy baryons in cold nuclear matter
• Systematical study of ${\Omega }_c$-like molecular states from interactions ${\Xi }_c^{{(}^{\prime },\ast )}{\bar{K}}^{(\ast )}$ and ${\Xi }^{(\ast )}{D}^{(\ast )}$
• Are the new excited ${\Omega }_c$ baryons negative parity states?
• The molecular nature of some exotic hadrons
• Heavy quark dominance in orbital excitation of singly and doubly heavy baryons
• Strong decays of the low-lying $1P$- and $1D$-wave ${\Sigma }_c$ baryons
• Heavy-quark dominance and fine structure of excited heavy baryons ${\Sigma }_Q$, ${\Xi }_Q^{\prime }$ and ${\Omega }_Q$
• Toward establishing the low-lying $P$-wave excited ${\Sigma }_c$ baryon states
• The ${\Omega }_{cc}$ resonances with negative parity in the chiral constituent quark model
• Mass spectra of singly heavy baryons in the relativized quark model with heavy-quark dominance
• Exotic ${\Omega }_c^0$ baryons from meson-baryon scattering