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 (4)

• Lattice QCD study of the elastic and transition form factors of charmed baryons
• 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
• Decays of Roper-like singly heavy baryons in a chiral model