Possibility of the existence of charmed exotica

Abstract

We employ the chiral quark-soliton model to describe excited baryons with one heavy quark. Identifying known charmed baryons with multiplets allowed by the model, we argue that apart from regular excitations of the ground state multiplets, some of recently reported by the LHCb collaboration narrow ${\Omega }_c^0$ states, may correspond to the exotic pentaquarks. This interpretation can be easily verified experimentally, since exotic ${\Omega }_c^0$ states -- contrary to the regular excitations -- form isospin triplets, rather than singlets.

9 pages, 3 figures. Published version. The title has been changed as appeared in the journal

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Cited by in corpus (50)

• An updated review of the new hadron states
• Very narrow excited ${\Omega }_c$ baryons
• Charmed Baryon Physics Circa 2021
• Molecular ${\Omega }_c$ states generated from coupled meson-baryon channels
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• A meson-baryon molecular interpretation for some ${\Omega }_c$ excited baryons
• Searching for possible ${\Omega }_c-$like molecular states from ${\Xi }_c^{\ast }\bar{K}/{\Xi }_c{\bar{K}}^{\ast }/{\Xi }_c^{\prime }{\bar{K}}^{\ast }$ interaction
• Charmed baryon spectrum from lattice QCD near the physical point
• The observed ${\Omega }_c^0$ resonances as pentaquark states
• Strong decays of exotic and non-exotic heavy baryons in the chiral quark-soliton model
• Observation of excited ${\Omega }_c^0$ baryons in ${\Omega }_b^{-}\to {\Xi }_c^{+}{K}^{-}{\pi }^{-}$ decays
• Investigating the excited ${\Omega }_c^0$ states through ${\Xi }_{c}K$ and ${\Xi }_c^{{}^{\prime }}K$ decay channels
• Electromagnetic form factors of singly heavy baryons in the self-consistent SU(3) chiral quark-soliton model
• Strong and radiative decays of DΞmolecular state and newly observed ${\Omega }_c$ states
• Magnetic moments of the lowest-lying singly heavy baryons
• Electromagnetic transitions of the singly charmed baryons with spin 3/2
• Mass spectra of singly heavy baryons in a self-consistent chiral quark-soliton model
• Magnetic transitions and radiative decays of singly heavy baryons
• Hidden Bottom Pentaquark States with Spin 3/2 and 5/2
• Possible pentaquark candidates: new excited ${\Omega }_c$ states
• Strong decays of the newly observed narrow ${\Omega }_b$ structures
• Possible Molecular Pentaquark States with Different Spin and Quark Configurations
• Doubly Heavy Tetraquarks in the Chiral Quark Soliton Model
• Electromagnetic form factors of the baryon decuplet with flavor SU(3) symmetry breaking
• Heavy and Strange Holographic Baryons
• Heavy Holographic Exotics: Tetraquarks as Efimov States
• Revisit assignments of the new excited ${\Omega }_c$ states with QCD sum rules
• Heavy baryons in a pion mean-field approach: A brief review
• Interpretation of excited ${\Omega }_b$ signals
• A Mixing Coupling Scheme for Spectra of Singly Heavy Baryons with Spin-1 Diquarks in P-waves
• Isospin mass differences of singly heavy baryons
• ${\mathbf{\Omega }}_{\mathbf{b}}^{-}\to ({\mathbf{\Xi }}_{\mathbf{c}}^{+}{\mathbf{K}}^{-}){\mathbf{\pi }}^{-}$ and the ${\mathbf{\Omega }}_{\mathbf{c}}$ states
• Improved pion mean fields and masses of singly heavy baryons
• Systematical study of ${\Omega }_c$-like molecular states from interactions ${\Xi }_c^{{(}^{\prime },\ast )}{\bar{K}}^{(\ast )}$ and ${\Xi }^{(\ast )}{D}^{(\ast )}$
• Electromagnetic transition form factors, $E2/M1$ and $C2/M1$ ratios of the baryon decuplet
• The molecular nature of some exotic hadrons
• Are the new excited ${\Omega }_c$ baryons negative parity states?
• Toward establishing the low-lying $P$-wave excited ${\Sigma }_c$ baryon states
• Baryonic matter and the medium modification of the baryon masses
• Feasibility study of the $K^{+}d\to K^{0}pp$ reaction for the "${\Theta }^{+}$" pentaquark
• Axial-vector transition form factors of the singly heavy baryons
• Heavy baryon decay widths in the large $N_c$ limit in chiral theory
• Invisible Charm Exotica
• Exotic Baryons in Chiral Soliton Models
• Structure of heavy baryons in a pion mean-field approach
• Exotic ${\Omega }_c^0$ baryons from meson-baryon scattering
• The Nakano-Nishijima-Gell-Mann Formula From Discrete Galois Fields
• Beautiful Exotica
• Landscape of heavy baryons from the perspective of the chiral quark-soliton model
• Light-cone distribution amplitudes of the nucleon and $\Delta$ baryon