Landscape of heavy baryons from the perspective of the chiral quark-soliton model

Abstract

We employ the chiral quark-soliton model and the heavy quark symmetry to describe spectra of charm and beauty baryons. Heavy baryons can be classified according to the SU(3) representations of the light sector. We argue that recently discovered ${\Xi }_b$ states can be interpreted as negative parity excited anti-triplets or sextets, and the ${\Sigma }_b$ states as negative parity sextets. Consequences of such assignments for the decay patterns are discussed and also predictions of masses of the yet unmeasured sextet members are given.

13 pages, 3 figures. In v2 new paragraph V.C added. References updated and added. Minor corrections including title. Version accepted in PRD

References in corpus (15)

• Observation of the doubly charmed baryon ${\Xi }_{cc}^{++}$
• Spectroscopy and Regge trajectories of heavy baryons in the relativistic quark-diquark picture
• Masses of excited heavy baryons in the relativistic quark-diquark picture
• Low-lying charmed and charmed-strange baryon states
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• Strong decays of exotic and non-exotic heavy baryons in the chiral quark-soliton model
• Observation of a new ${\Xi }_b^0$ state
• Observation of a new baryon state in the ${\Lambda }_b^0{\pi }^{+}{\pi }^{-}$ mass spectrum
• Observation of excited ${\Omega }_c^0$ baryons in ${\Omega }_b^{-}\to {\Xi }_c^{+}{K}^{-}{\pi }^{-}$ decays
• Pion mean fields and heavy baryons
• Interpretation of the observed ${\Lambda }_b(6146{)}^0$ and ${\Lambda }_b(6152{)}^0$ states as 1$D$ bottom baryons
• Universal behavior of mass gaps existing in the single heavy baryon family
• Canonical interpretations of the newly observed ${\Xi }_c(2923{)}^0$, ${\Xi }_c(2939{)}^0$ and ${\Xi }_c(2965{)}^0$ resonances
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Cited by in corpus (3)

• An updated review of the new hadron states
• Identifying the ${\Xi }_b(6100)$ as the $P$-wave bottom baryon of $J^P=3/2^{-}$
• Invisible Charm Exotica