Bolstering up the existence of $P_s(2080)$
Abstract
We present a detailed study of the partial decay widths of a spin-parity resonance with a mass of 2070 MeV obtained from the coupled channel s wave vector-baryon , , , and dynamics. This state, which couples strongly to the channel, corresponds to a nucleon with a hidden strange quark content, in analogy to the states discovered by the LHCb collaboration, and we denote it as . A state with such a nature can decay to vector-baryon, pseudoscalar-baryon, and pseudoscalar-baryon resonance channels, involving triangular loops in the latter two cases. As we will show, the partial decay widths to pseudoscalar-baryon resonance channels, like , , , are comparable to those related to ground state baryons in the final state, like , , . In this way, reactions involving such lighter baryon resonances in the final state can be used as an alternative source of information on the properties of a with hidden strangeness.
Cite
@article{arxiv.2412.19559,
title = {Bolstering up the existence of $P_s(2080)$},
author = {Breno Agatão and A. Vertel Nieto and K. P. Khemchandani and A. Martinez Torres and Seung-il Nam},
journal= {arXiv preprint arXiv:2412.19559},
year = {2024}
}