Can the observed enhancement in the mass spectrum of p p in J/ψ→ γp p be interpreted by a possible p p bound state

2004/06/10 by Xiang Liu, Liu, Xiang, Xiaoqiang Zeng +11
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0406118

15 pages, 3 figures

arxiv created 2004/06/10 · openalex publication_date 2004/06/10 · arxiv updated 2009/12/01 · openalex created_date 2020/07/29 · openalex updated_date 2026/07/28

Abstract

Provided the enhancement in the p p spectrum in radiative decay J/ψ→ γp p observed by the BES collaboration is due to an existence of a p p molecular state, we calculate its binding energy and lifetime in the linear σ model. We consider a possibility that the enhancement is due to a p p resonance which is in either S-wave or P-wave structure and compare our results with the data.

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