Evidence of sub-nucleonic degrees of freedom in J/$\psi$ photoproduction in ultraperipheral collisions at the CERN Large Hadron Collider

Abstract

We present calculations for the incoherent photoproduction of J/$\psi$ vector mesons in ultra-peripheral heavy ion collisions (UPC) in terms of hadronic interactions. This study was carried out using the recently developed Monte Carlo model CRISP extended to include UPCs at LHC energies. A careful study of re-scattering and destruction of the J/$\psi$ particles is presented for PbPb collisions at $\sqrt{s_{NN}}=2.76$ TeV. We have also compared our method to AuAu collisions at $\sqrt{s_{NN}}=200$ GeV measured at RHIC.

6 pages, 7 figures

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• Glauber Modeling in High Energy Nuclear Collisions
• Triangularity and Dipole Asymmetry in Heavy Ion Collisions
• Triangular flow in hydrodynamics and transport theory
• The eccentricity in heavy-ion collisions from Color Glass Condensate initial conditions

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