Heavy baryons in the chiral quark-soliton model: a possibility for exotica?

TL;DR

This paper explores the interpretation of excited Omega_c baryons within the chiral quark-soliton model, proposing that some states may be exotic pentaquarks in specific SU(3) representations.

Contribution

It introduces a novel interpretation of certain excited Omega_c states as pentaquarks, expanding the understanding of baryon spectroscopy in the chiral quark-soliton framework.

Findings

Not all five excited Omega_c states can be explained as parity minus excitations.

Two narrowest states are identified as pentaquarks in the SU(3) ar{15} representation.

The model suggests the existence of exotic baryonic states beyond conventional quark configurations.

Abstract

We discuss possible interpretation of five excited $\Omega^0_c$ states within the Chrial Quark Soliton Model. We show that it is not possible to interpret all five $\Omega^0_c$'s as parity minus excitations and argue that two narrowest states are pentaquarks belonging to the SU(3) representation $\overline{15}$.