arXiv:1606.08912·v1·High Energy Physics — Phenomenology
Studying the P_c(4450) resonance in J/psi photoproduction off protons
A. N. Hiller Blin🇪🇸 · C. Fernández-Ramírez🇲🇽 · A. Jackura🇺🇸 · V. Mathieu🇺🇸 · V. I. Mokeev🇺🇸 · A. Pilloni🇺🇸 · A. P. Szczepaniak🇺🇸
Abstract
A resonance-like structure, the P_c(4450), has recently been observed in the J/psi p spectrum by the LHCb collaboration. We discuss the feasibility of detecting this structure in J/psi photoproduction in the CLAS12 experiment at JLab. We present a first estimate of the upper limit for the branching ratio of the P_c(4450) to J/psi p. Our estimates, which take into account the experimental resolution effects, predict that it will be possible to observe a sizable cross section close to the J/psi production threshold and shed light on the P_c(4450) resonance in the future photoproduction measurements.