A study on the exotic state P_c(4312),P_c(4440),P_c(4457) in pp collisions at √(s)=7, 13 TeV

2021/11/05 by Chen, Chun-hui, Xie, Yi-Long, Xu, Hong-ge +4
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2111.03241

Abstract

The exotic resonant state P_c^±(4312), P_c^±(4440), and P_c^±(4457) are studied by using the dynamically constrained phase space coalescence DCPC model and PACIAE model in pp collisions at √(s)=7, 13TeV, respectively. We consider exotic state P_c^±(4312), P_c^±(4440) and P_c^±(4457) to be three kinds of possible structures, i.e. pentaquark state, the nucleus-like state, and the molecular state based on P_c^± → J/ψp( p) bound state. The yield, the transverse momentum distribution and the rapidity distribution of P_c with three different structures are all predicted. The results indicated that the yield is on the order of 10^-6, which might provide reference for experimental research.

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