2016/02/29 by V. Guzey, E. Kryshen, M. Zhalov · 77 citations
Physics and Astronomy · #Collider #Gluon #HERA #Hadron #Heavy ion #High-Energy Particle Collisions Research #Ion #Large Hadron Collider #Meson #Nuclear physics #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Photon #Physics #Proton #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Vector meson #hep-ph #nucl-ex #nucl-th
paper · pdf · doi:10.1103/physrevc.93.055206
published in Physical Review C 93(5) (American Institute of Physics) · 13 pages, 8 figures. Final published version
openalex publication_date 2016/05/24 · arxiv created 2016/06/22 · arxiv updated 2016/06/23 · openalex created_date 2016/07/22 · openalex updated_date 2026/08/05
We make predictions for the cross sections of coherent photoproduction of \ensuremathρ,\phantom\rule0.28em0ex\ensuremathφ,\phantom\rule0.28em0exJ/\ensuremathψ,\phantom\rule0.28em0ex\ensuremathψ(2S), and \mathrm\ensuremathΥ(1S) mesons in Pb-Pb ultraperipheral collisions (UPCs) at √sNN=5.02\phantom\rule0.28em0exTeV in the kinematics of run 2 at the Large Hadron Collider extending the approaches successfully describing the available Pb-Pb UPC data at √sNN=2.76\phantom\rule0.28em0exTeV. Our results illustrate the important roles of hadronic fluctuations of the photon and inelastic nuclear shadowing in photoproduction of light vector mesons on nuclei and the large leading twist nuclear gluon shadowing in photoproduction of quarkonia on nuclei. We show that the ratio of \ensuremathψ(2S) and J/\ensuremathψ photoproduction cross sections in Pb-Pb UPCs is largely determined by the ratio of these cross sections on the proton. We also argue that UPCs with electromagnetic excitations of the colliding ions followed by the forward neutron emission allows one to significantly increase the range of photon energies accessed in vector meson photoproduction on nuclei.