The LHCb experiment has recently reported two excited Ωc resonances decaying to Ξc+K−, with masses about 3185 and 3327 MeV. We discuss their assignment to 2S1/2 and 2S3/2 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.
@article{arxiv.2304.00407,
title = {Excited $\Omega_c$ baryons as 2S states},
author = {Marek Karliner and Jonathan L. Rosner},
journal= {arXiv preprint arXiv:2304.00407},
year = {2023}
}