Single heavy baryons with chiral partner structure in a three-flavor chiral model

Abstract

We construct an effective hadronic model including single heavy baryons (SHBs) belonging to the $(3,3)$ representation under $\mbox{SU}(3)_L \times \mbox{SU}(3)_R$ symmetry, respecting the chiral symmetry and heavy-qaurk spin-flavor symmetry. When the chiral symmetry is spontaneously broken, the SHBs are divided into the baryons with negative parity of $\bar{3}$ representation under $\mbox{SU}(3)$ flavor symmetry which is the chiral partners to the ones with positive parity of $6$ representation. We determine the model parameters from the available experimental data for the masses and strong decay widths of ${\Sigma }_c^{(\ast )}$, ${\Lambda }_c(2595)$, ${\Xi }_c(2790)$, and ${\Xi }_c(2815)$. Then, we predict the masses and strong decay widths of other baryons including ${\Xi }_b$ with negative parity. We also study radiative decays of SHBs including ${\Omega }_c^{\ast }$ and ${\Omega }_b^{\ast }$ with positive parity.

13 pages, 1 figure. arXiv admin note: text overlap with arXiv:1804.04872

References in corpus (5)

• Strong and radiative decays of the low-lying $S$- and $P$-wave singly heavy baryons
• P-wave charmed baryons from QCD sum rules
• Structure of charmed baryons studied by pionic decays
• Measurements of the properties of Lambda_c(2595), Lambda_c(2625), Sigma_c(2455), and Sigma_c(2520) baryons
• Chiral partner structure of heavy baryons from the bound state approach with hidden local symmetry

Cited by in corpus (17)

• An updated review of the new hadron states
• Systematic analysis of single heavy baryons ${\Lambda }_Q$, ${\Sigma }_Q$ and ${\Omega }_Q$
• Identification of newly observed singly charmed baryons using relativistic flux tube model
• Observation of new baryons in the ${\Xi }_b^{-}{\pi }^{+}{\pi }^{-}$ and ${\Xi }_b^0{\pi }^{+}{\pi }^{-}$ systems
• Lattice QCD study of the elastic and transition form factors of charmed baryons
• Probing the hadron mass spectrum in dense two-color QCD with the linear sigma model
• The newly observed ${\Lambda }_b(6072{)}^0$ structure and its $\rho -$mode nonstrange partners
• Suppression of decay widths in singly heavy baryons induced by the $U_A(1)$ anomaly
• Predicted ${\Xi }_b(6087{)}^0$ and further predictions
• Decays of Roper-like singly heavy baryons in a chiral model
• Strong decays of singly heavy baryons from a chiral effective theory of diquarks
• Axial anomaly effect to the chiral-partner structure of diquarks at high temperature
• Observation of the ${\Xi }_{\mathrm{b}}^{-}$ $\to$ $\psi$(2S)${\Xi }^{-}$ decay and studies of the ${\Xi }_{\mathrm{b}}$(5945)${}^0$ baryon in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Fate of ${\Sigma }_c$, ${\Xi }_c^{\prime }$ and ${\Omega }_c$ baryons at high temperature with chiral restoration
• Axial anomaly effect on three-quark and five-quark singly heavy baryons
• Chiral effective theory of scalar and vector diquarks revisited
• Probing the inner structures of the observed ${\Xi }_b$ and ${\Xi }_b^{\prime }$ resonances