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Disentangling coherent and incoherent quasielastic photoproduction on nuclei by neutron tagging in ultraperipheral ion collisions at the LHC
V. Guzey, M. Strikman, M. Zhalov
We consider photoproduction in ion--ion ultraperipheral collisions (UPCs) at the LHC and RHIC in the coherent and incoherent quasielastic channels with and without accompanyi…
Rapidity and momentum transfer distributions of coherent photoproduction in ultraperipheral pPb collisions at the LHC
V. Guzey, M. Zhalov
Based on accurate calculations of the flux of equivalent photons of the proton and heavy nuclei and the pQCD framework for the gluon distribution in the proton and nuclei, we analy…
Exclusive J/ψ production in ultraperipheral collisions at the LHC: constrains on the gluon distributions in the proton and nuclei
V. Guzey, M. Zhalov
Using the framework of collinear factorization in perturbative QCD (pQCD), we analyze the recent data of the LHCb and ALICE collaborations on exclusive photoproduction of J/ψ in ul…
Evidence for nuclear gluon shadowing from the ALICE measurements of PbPb ultraperipheral exclusive J/ψ production
V. Guzey, E. Kryshen, M. Strikman +1
We show that the recent ALICE measurements of exclusive J/ψ production in ultraperipheral PbPb collisions at 2.76 TeV provide the first direct experimental evidence for the strong…