Friday, July 26, 2013

1305.2407 (M. B. Gay Ducati et al.)

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

M. B. Gay Ducati, M. T. Griep, M. V. T. Machado
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.
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