# Exotic $\Omega_c^0$ baryons from meson-baryon scattering

## TL;DR

This paper models meson-baryon interactions to explain the observed $ ext{Ω}_c^0$ baryons as molecular states, providing a theoretical framework that matches recent experimental findings from LHCb.

## Contribution

It introduces a meson-baryon scattering model using vector meson exchange and unitarization, offering a novel interpretation of $ ext{Ω}_c^0$ states as molecular resonances.

## Key findings

- Identifies two resonances matching observed $ ext{Ω}_c^0$ states.
- Suggests these states are molecular with $J^P=1/2^-$.
- Provides a theoretical basis for meson-baryon molecular interpretation.

## Abstract

A meson-baryon interaction in the charm $+1$, strangeness $-2$ and isospin $0$ sector is built from a t-channel vector meson exchange model employing effective Lagrangians. The implementation of coupled-channel unitarization in the s-wave scattering amplitudes gives rise to two structures that have similar masses and widths to those of the $\Omega_c(3050)^0$ and $\Omega_c(3090)^0$ states recently observed by the LHCb collaboration. A meson-baryon molecular interpretation of these resonances would assign their spin-parity to be $J^P=1/2^-$.