# Observation of five new narrow $\Omega_c^0$ states decaying to $\Xi_c^+ K^-$

## TL;DR

This paper reports the discovery of five new narrow excited $\\Omega_c^0$ states in the $\\Xi_c^+ K^-$ mass spectrum using LHCb data, providing new insights into charmed baryon spectroscopy.

## Contribution

The paper presents the first observation and measurement of five new excited $\\Omega_c^0$ states, expanding the known spectrum of charmed baryons.

## Key findings

- Five new narrow $\\Omega_c^0$ states observed.
- Masses and widths of these states measured.
- Enhanced understanding of baryon spectroscopy.

## Abstract

The $\Xi_c^+ K^-$ mass spectrum is studied with a sample of $pp$ collision data corresponding to an integrated luminosity of 3.3 fb$^{-1}$, collected by the LHCb experiment. The $\Xi_c^+$ is reconstructed in the decay mode $p K^- \pi^+$. Five new, narrow excited $\Omega_c^0$ states are observed: the $\Omega_c(3000)^0$, $\Omega_c(3050)^0$, $\Omega_c(3066)^0$, $\Omega_c(3090)^0$, and $\Omega_c(3119)^0$. Measurements of their masses and widths are reported.