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.

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