Exclusive J/ψ Photoproduction off Protons in Ultraperipheral p-Pb Collisions at sqrt[s_{NN}]=5.02 TeV.
We present the first measurement at the LHC of exclusive J/ψ photoproduction off protons, in ultraperipheral proton-lead collisions at sqrt[s_{NN}]=5.02 TeV. Events are selected with a dimuon pair produced either in the rapidity interval, in the laboratory frame, 2.5