# Possibility of the existence of charmed exotica

## TL;DR

This paper explores the potential existence of charmed exotic baryons, proposing that some recently observed narrow $ ext{Ω}_c^0$ states could be exotic pentaquarks, distinguishable by their isospin triplet nature.

## Contribution

It applies the chiral quark-soliton model to identify possible exotic charmed baryons, offering a new interpretation of recent experimental findings as pentaquark states.

## Key findings

- Some narrow $ ext{Ω}_c^0$ states may be exotic pentaquarks.
- Exotic states are predicted to form isospin triplets, unlike regular excitations.
- Experimental verification is feasible through isospin analysis.

## Abstract

We employ the chiral quark-soliton model to describe excited baryons with one heavy quark. Identifying known charmed baryons with multiplets allowed by the model, we argue that apart from regular excitations of the ground state multiplets, some of recently reported by the LHCb collaboration narrow $\Omega^{0}_{c}$ states, may correspond to the exotic pentaquarks. This interpretation can be easily verified experimentally, since exotic $\Omega^{0}_{c}$ states -- contrary to the regular excitations -- form isospin triplets, rather than singlets.