Masses of hidden-charm pentaquark states with J^P = (3)/(2)^-

2025/07/03 by Li, Tao, Li, Hao-Song
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2507.02502

Abstract

Within the heavy pentaquark chiral perturbation theory, we calculate the chiral corrections for J^P=(3)/(2)^- octet hidden-charm pentaquark masses up to next-to-leading order. Taking the LHCb-reported P_ψ^N(4440) and P_ψs^Λ(4459) (with J^P=(3)/(2)^-) as inputs, we predict the other two octet hidden-charm pentaquark states P_ψs^Σ(4483) and P_ψss^N(4490) with J^P=(3)/(2)^-. The results provide theoretical guidance for the further search of P_ψs^Σ and P_ψss^N in experiments.

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