Interpretation of the new ${\Omega }_c^0$ states via their mass and width

Abstract

The mass and pole residue of the ground and first radially excited ${\Omega }_c^0$ states with spin-parities $J^P=1/2^{+},3/2^{+}$, as well as P-wave ${\Omega }_c^0$ with $J^P=1/2^{-},3/2^{-}$ are calculated by means of the two-point QCD sum rules. The strong decays of ${\Omega }_c^0$ baryons are also studied and width of these decay channels are computed. The relevant computations are performed in the context of the full QCD sum rules on the light-cone. Obtained results for the masses and widths are confronted with recent experimental data of LHCb Collaboration, which allow us to interpret ${\Omega }_c(3000{)}^0$, ${\Omega }_c(3050{)}^0$, and ${\Omega }_c(3119{)}^0$ as the excited $css$ baryons with the quantum numbers $(1P,1/2^{-})$, $(1P,3/2^{-})$, and $(2S,3/2^{+})$, respectively. The $(2S,1/2^{+})$ state can be assigned either to ${\Omega }_c(3066{)}^0$ state or ${\Omega }_c(3090{)}^0$ excited baryon.

12 Pages, 4 Figures and 4 Tables

References in corpus (15)

• Heavy Baryons in a Quark Model
• Spectroscopy and Regge trajectories of heavy baryons in the relativistic quark-diquark picture
• Masses of excited heavy baryons in the relativistic quark-diquark picture
• Towards an understanding of heavy baryon spectroscopy
• The Flavor Structure of the Excited Baryon Spectra from Lattice QCD
• Faddeev study of heavy baryon spectroscopy
• P-wave charmed baryons from QCD sum rules
• Mass spectra and Regge trajectories of ${\Lambda }_c^{+}$, ${\Sigma }_c^0$, ${\Xi }_c^0$ and ${\Omega }_c^0$ Baryons
• Radiative Decays of the Heavy Flavored Baryons in Light Cone QCD Sum Rules
• D-wave charmed and bottomed baryons from QCD sum rules
• Analysis of ${\Omega }_c^{\ast }(css)$ and ${\Omega }_b^{\ast }(bss)$ with QCD sum rules
• Mass and Magnetic Moments of the Heavy Flavored Baryons with $J=3/2$ in Light Cone QCD Sum Rules
• Analysis of ${\Omega }_b^{-}(bss)$ and ${\Omega }_c^0(css)$ with QCD sum rules
• Heavy baryon--light vector meson couplings in QCD
• Analysis of heavy spin--3/2 baryon--heavy spin--1/2 baryon--light vector meson vertices in QCD

Cited by in corpus (5)

• Exotics: Heavy Pentaquarks and Tetraquarks
• Strong and radiative decays of the low-lying $S$- and $P$-wave singly heavy baryons
• Strong decays of exotic and non-exotic heavy baryons in the chiral quark-soliton model
• Revisit assignments of the new excited ${\Omega }_c$ states with QCD sum rules
• Interpretation of excited ${\Omega }_b$ signals