In this work we investigate the exclusive photoproduction of J=c and the radially excited c ð2SÞ state off nucleons in proton-proton collisions. The theoretical framework considered in the analysis is the light-cone dipole formalism and predictions are done for proton-proton collisions at the CERN-LHC energy of 7 TeV. The theoretical uncertainties are investigated and a comparison is made to the recent LHCb Collaboration data for the exclusive charmonium production.
Physical review. D, Particles, fields, gravitation, and cosmology. Ridge, NY. Vol. 88, no. 1 (July 2013), 017504, 5 p.