New ${\Omega }_c^0$ baryons discovered by LHCb as the members of $1P$ and $2S$ states

Abstract

Inspired by the newly observed ${\Omega }_c^0$ states at LHCb, we decode their properties by performing an analysis of mass spectrum and decay behavior. Our studies show that the five narrow states, i.e., ${\Omega }_c(3000{)}^0$, ${\Omega }_c(3050{)}^0$, ${\Omega }_c(3066{)}^0$, ${\Omega }_c(3090{)}^0$, and ${\Omega }_c(3119{)}^0$, could be grouped into the $1P$ states with negative parity. Among them, the ${\Omega }_c(3000{)}^0$ and ${\Omega }_c(3090{)}^0$ states could be the $J^P=1/2^{-}$ candidates, while ${\Omega }_c(3050{)}^0$ and ${\Omega }_c(3119{)}^0$ are suggested as the $J^P=3/2^{-}$ states. ${\Omega }_c(3066{)}^0$ could be regarded as a $J^P=5/2^{-}$ state. Since the the spin-parity, the electromagnetic transitions, and the possible hadronic decay channels ${\Omega }_c^{(\ast )}\pi$ have not been measured yet, other explanations are also probable for these narrow ${\Omega }_c^0$ states. Additionally, we discuss the possibility of the broad structure ${\Omega }_c(3188{)}^0$ as a $2S$ state with $J^P=1/2^{+}$ or $J^P=3/2^{+}$. In our scheme, ${\Omega }_c(3119{)}^0$ cannot be a $2S$ candidate.

10 pages, 3 figures, 5 tables, typos corrected. Published in Phys. Rev. D

References in corpus (20)

• Heavy Baryons in a Quark Model
• Spectroscopy and Regge trajectories of heavy baryons in the relativistic quark-diquark picture
• Observation of five new narrow ${\Omega }_c^0$ states decaying to ${\Xi }_c^{+}{K}^{-}$
• Towards an understanding of heavy baryon spectroscopy
• Strong decays of charmed baryons
• Assignments of ${\Lambda }_Q$ and ${\Xi }_Q$ baryons in the heavy quark-light diquark picture
• Quantum Numbers of Recently Discovered ${\Omega }_c^0$ Baryons from Lattice QCD
• Very narrow excited ${\Omega }_c$ baryons
• Decay properties of $P$-wave charmed baryons from light-cone QCD sum rules
• Mass spectra and Regge trajectories of ${\Lambda }_c^{+}$, ${\Sigma }_c^0$, ${\Xi }_c^0$ and ${\Omega }_c^0$ Baryons
• Low-lying charmed and charmed-strange baryon states
• On the nature of the newly discovered ${\Omega }_c^0$ states
• Understanding the newly observed ${\Omega }_c$ states through their decays
• Interpretation of the newly observed ${\Omega }_c^0$ resonances
• Quantum Numbers of ${\Omega }_c$ States and Other Charmed Baryons
• Study of the $D^{0}p$ amplitude in ${\Lambda }_b^0\to D^{0}p{\pi }^{-}$ decays
• Analysis of the ${\Omega }_c(3000)$, ${\Omega }_c(3050)$, ${\Omega }_c(3066)$, ${\Omega }_c(3090)$ and ${\Omega }_c(3119)$ with QCD sum rules
• Possibility of the existence of charmed exotica
• Hadronic decay properties of newly observed ${\Omega }_c$ baryons
• The observed ${\Omega }_c^0$ resonances as pentaquark states

Cited by in corpus (54)

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• Interpretation of the newly observed ${\Lambda }_b(6146{)}^0$ and ${\Lambda }_b(6152{)}^0$ states in a chiral quark model
• Strong decays of the 1P and 2D doubly charmed states
• Observation of new ${\Omega }_c^0$ states decaying to the ${\Xi }_c^{+}{K}^{-}$ final state
• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
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• Universal behavior of mass gaps existing in the single heavy baryon family
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• Heavy Holographic Exotics: Tetraquarks as Efimov States
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• Interpretation of excited ${\Omega }_b$ signals
• Identifying the ${\Xi }_b(6100)$ as the $P$-wave bottom baryon of $J^P=3/2^{-}$
• A Mixing Coupling Scheme for Spectra of Singly Heavy Baryons with Spin-1 Diquarks in P-waves
• Refining radiative decay studies in singly heavy baryons
• ${\mathbf{\Omega }}_{\mathbf{b}}^{-}\to ({\mathbf{\Xi }}_{\mathbf{c}}^{+}{\mathbf{K}}^{-}){\mathbf{\pi }}^{-}$ and the ${\mathbf{\Omega }}_{\mathbf{c}}$ states
• Investigation of the mass spectra of singly heavy baryons ${\Sigma }_Q$, ${\Xi }_Q^{\prime }$ and ${\Omega }_Q$ $(Q=c,b)$ in the Regge trajectory model
• Restudy of the color-allowed two-body nonleptonic decay of bottom baryons ${\Xi }_b$ and ${\Omega }_b$ supported by hadron spectroscopy
• 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 ${\Xi }^{(\ast )}{D}^{(\ast )}$
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• Identifying triple-strangeness $\Omega$ hyperons in light of recent experimental results
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• Heavy quark dominance in orbital excitation of singly and doubly heavy baryons
• Toward establishing the low-lying $P$-wave excited ${\Sigma }_c$ baryon states
• Strong decays of the low-lying $1P$- and $1D$-wave ${\Sigma }_c$ baryons
• The ${\Omega }_{cc}$ resonances with negative parity in the chiral constituent quark model
• Invisible Charm Exotica
• Thermodynamics of charmed hadrons across chiral crossover from lattice QCD
• Octet baryon and heavy meson interactions in chiral effective field theory
• Exotic ${\Omega }_c^0$ baryons from meson-baryon scattering
• Analysis of the ${\Omega }_b(6316)$, ${\Omega }_b(6330)$, ${\Omega }_b(6340)$ and ${\Omega }_b(6350)$ with QCD sum rules