Diffractive photoproduction of radially excited psi(2S) mesons in photon-Pomeron reactions in PbPb collisions at the CERN LHC

Understand

In this work we investigate the photoproduction of radially excited vector mesons off nuclei in heavy ion relativistic collisions.

• In particular, we analyze the exclusive photoproduction of psi(2S) off nuclei, evaluating the coherent and the incoherent contributions to that process.
• The theoretical framework used in the present analysis is the light-cone dipole formalism and predictions are done for PbPb collisions at the CERN-LHC energy of 2.76 TeV.
• The theoretical uncertainties are analyzed and comparison is also done to the recent ALICE Collaboration data for the psi(1S) state photoproduction.