Coherent photoproduction of J/Psi and high-mass e+e- pairs in ultra-peripheral Au+Au collisions at sqrt(s_NN) = 200 GeV

2005/12/31 by D. d’Enterria, David d'Enterria, d'Enterria, David
Physics and Astronomy · #FOS: Physical sciences #Gamma-ray bursts and supernovae #High-Energy Particle Collisions Research #Nuclear Experiment (nucl-ex) #Nuclear Theory (nucl-th) #Quantum Chromodynamics and Particle Interactions #nucl-ex #nucl-th

paper · pdf · doi:10.48550/arxiv.nucl-ex/0601001

13 pages, 9 figures, "Quark Matter 2005" poster Proceedings. [An extended version also presented at the "Physics of Hadronic Interactions at LHC with Nucleons and Nuclei and Phase Transition Physics - 1st ALICE Physics Week"]

openalex publication_date 2005/12/31 · arxiv created 2006/01/08 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

High energy ultra-peripheral collisions (UPC) of heavy-ions generate strong electromagnetic fields which open the possibility to study gamma-gamma and gamma-nucleus processes in a kinematic regime so far unexplored. We report on preliminary PHENIX results of J/Psi and high-mass e+e- photoproduction at mid-rapidity in coherent electromagnetic Au+Au interactions at sqrt(s_NN) = 200 GeV tagged with forward neutron emission from the Au* dissociation.

Related

• Ultra-peripheral Au+Au collisions at PHENIX
• Results on ultra-peripheral interactions in Pb-Pb and p-Pb collisions in ALICE
• Light nuclei photoproduction in relativistic heavy ion ultraperipheral collisions
• Photoproduction of J/ψ with neutron tagging in ultra-peripheral collisions of nuclei at RHIC and the LHC
• Coherent J/ψ photoproduction in Pb-Pb collisions with nuclear overlap studied with ALICE at the LHC