Excited $\Omega_c$ baryons as 2S states

TL;DR

This paper analyzes recently observed excited $\\Omega_c$ baryons, proposing they are 2S states based on mass comparisons, challenging previous interpretations and providing insights into baryon spectroscopy.

Contribution

It offers a new assignment of the excited $\\Omega_c$ states as 2S states, based on mass extrapolation and comparison with experimental data.

Findings

The $\\Omega_c(3185)$ and $\\Omega_c(3327)$ are consistent with 2S states.

Mass extrapolation supports the 2S assignment over earlier hypotheses.

The analysis refines understanding of baryon excitation spectra.

Abstract

The LHCb experiment has recently reported two excited $\Omega_c$ resonances decaying to $\Xi_c^+ K^-$, with masses about 3185 and 3327 MeV. We discuss their assignment to $2S_{1/2}$ and $2S_{3/2}$ states, which can be compared with masses based on extrapolation from the observed 1S states. The agreement is not perfect, but weighs against an earlier alternative assignment.