$J/\Psi$ Photoproduction in Peripheral AA Collisions

Abstract

The exclusive photoproduction of the heavy vector mesons $J/\Psi$ is investigated in the context of peripheral lead-lead collisions for the energies available at the LHC, $\sqrt{s}=2.76$ TeV and $\sqrt{s}=5.02$ TeV. Using the light-cone color dipole formalism, it was calculated the rapidity distribution in two centrality bins 50\%-70\% and 70\%-90\% in order to evaluate its robustness in extrapolating down to smaller impact parameter. It is introduced a modified photon flux, without change in the photonuclear cross section in relation to the ultraperipheral (UPC) case. Results were obtained for the two regions analized, which presented a maximum difference of 27\% in frontal rapidity for the two regions. Comparing the results for $\sqrt{s}=2.76$ TeV and $\sqrt{s}=5.02$ TeV, it was verified an increase of approximately half the one obtained in ultraperipheral regime in the central rapidity region.

References in corpus (6)

• J/psi Production in Quark-Gluon Plasma
• Transverse Momentum Spectra of J/ψin Heavy-Ion Collisions
• J/Psi production in ultraperipheral Pb+Pb and p+Pb collisions at energies available at the CERN Large Hadron Collider
• Diffractive upsilon production at the LHC
• Photoproduction of Upsilon states in ultraperipheral collisions at the CERN Large Hadron Collider within the color dipole approach
• Vector meson production in ultra-peripheral collisions at the LHC

Cited by in corpus (4)

• Coherent and incoherent $J/\psi$ photonuclear production in an energy-dependent hot-spot model
• Charmonium Coherent Photoproduction and Hadroproduction with Effects of Quark Gluon Plasma
• Heavy Mesons Photoproduction in Peripheral AA Collisions
• Regge phenomenology and coherent photoproduction of charmonium in peripheral heavy ion collisions