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Bolstering up the existence of $P_{s} (2080)$

Breno Agatão ^1,*, A. Vertel Nieto ^1,†, K. P. Khemchandani^2,‡, A. Martínez Torres ^1,§, and Seung-il Nam ^3,4,∥

¹Universidade de Sao Paulo, Instituto de Fisica, Postal Code 05389-970, Sao Paulo, Brazil
²Universidade Federal de Sao Paulo, Postal Code 01302-907, Sao Paulo, Brazil
³Department of Physics, Pukyong National University (PKNU), Busan 48513, Korea
⁴Asia Pacific Center for Theoretical Physics (APCTP), Pohang 37673, Korea

^*Contact author: bgarcia@if.usp.br
^†Contact author: anieto@if.usp.br
^‡Contact author: kanchan.khemchandani@unifesp.br
^§Contact author: amartine@if.usp.br
^∥Contact author: sinam@pknu.ac.kr

Phys. Rev. D 111, 116013 – Published 16 June, 2025

DOI: https://doi.org/10.1103/v61h-vddp

Abstract

We present a detailed study of the partial decay widths of a spin-parity resonance $J^{P} = 3 / 2^{-}$ $N^{*}$ with a mass of $≃ 2070 MeV$ obtained from the coupled channel $s$ -wave vector-baryon $ρ N$ , $ω N$ , $ϕ N$ , $K^{*} Λ$ , and $K^{*} Σ$ dynamics. This state, which couples strongly to the $K^{*} Σ$ channel, corresponds to a nucleon with a hidden strange quark content, in analogy to the $P_{c}$ states discovered by the LHCb Collaboration, and we denote it as $P_{s} (2080)$ . 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 $π N^{*} (1535)$ , $π N^{*} (1650)$ , $K Λ (1405)$ , are comparable to those related to ground state baryons in the final state, like $π N$ , $η N$ , $K Λ$ . 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 an $N^{*}$ with hidden strangeness.

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Phys. Rev. D 111, 116013– Published 16 June, 2025

Vol. 111, Iss. 11 — 1 June 2025

Received 3 February 2025
Accepted 21 May 2025

DOI: https://doi.org/10.1103/v61h-vddp

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP³.

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Bolstering up the existence of $P_{s} (2080)$

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Bolstering up the existence of Ps(2080)

Abstract

Physics Subject Headings (PhySH)

Article Text

References (66)

Bolstering up the existence of $P_{s} (2080)$