Studying the P_c(4450) resonance in J/psi photoproduction off protons
  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. 
A. N. Hiller Blin, C. Fern\'andez-Ram\'irez, A. Jackura, V. Mathieu,   V. I. Mokeev, A. Pilloni, A. P. Szczepaniak
hep-ph hep-ex nucl-th