Exotic states Pc(4312), Pc(4440), and Pc(4457)in pp collisions at √s=7, 13 TeV

作者：Chen, Chun-hui; Xie, Yi-Long; Xu, Hong-ge; Zhang, Zhen; Zhou, Dai-Mei; She, Zhi-Lei; Chen, Gang^*

来源：Physical Review D, 2022, 105(5): 054013.

DOI：10.1103/PhysRevD.105.054013

• MULTIQUARK HADRONS

The exotic resonant states p(c)(+/-)(4312), p(c)(+/-)(4440), and p(c)(+/-)(4457) are studied using the constrained phase-space coalescence model plus the parton and hadron cascade (PACIAE) model in pp collisions at root s = 7, 13 TeV, respectively. The pentaquark states, the nucleuslike states, and the hadronic molecular states are considered as their possible structures based on the p(c)(+/-) -> J/psi p((p) over bar) bound state. The predictions about the yield, the normalized p(T)-differential yield, and the normalized rapidity-differential yield are presented for the aforementioned scenarios. The results indicate a hierarchy of the yields for different possible structures; they are all on the order of 10(-6). These predictions can be tested by future experimental measurements.