Nucleon dissociation and incoherent $J/\psi$ photoproduction on nuclei in ion ultraperipheral collisions at the CERN Large Hadron Collider

Abstract

Using the general notion of cross section fluctuations in hadron--nucleus scattering at high energies, we derive an expression for the cross section of incoherent $J/\psi$ photoproduction on heavy nuclei $d{\sigma }_{\gamma A\to J/\psi Y}/dt$, which includes both elastic $d{\sigma }_{\gamma p\to J/\psi p}/dt$ and proton-dissociation $d{\sigma }_{\gamma p\to J/\psi Y}/dt$ photoproduction on target nucleons. We find that with good accuracy, $d{\sigma }_{\gamma A\to J/\psi Y}/dt$ can be expressed as a product of the sum of the $d{\sigma }_{\gamma p\to J/\psi p}/dt$ and $d{\sigma }_{\gamma p\to J/\psi Y}/dt$ cross sections, which have been measured at HERA, and the common nuclear shadowing factor, which is calculated using the leading twist nuclear shadowing model. Our prediction for the cross section of incoherent $J/\psi$ photoproduction in Pb-Pb UPCs at $\sqrt{s_{NN}}=2.76$ TeV and $y=0$, $d{\sigma }_{AA\to J/\psi AY}(y=0)/dy=0.59-1.24$ mb, agrees within significant theoretical uncertainties with the data of the ALICE collaboration.

7 pages, 2 figures. Final published version

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• EPS09 - a New Generation of NLO and LO Nuclear Parton Distribution Functions
• The Physics of Ultraperipheral Collisions at the LHC
• EPPS16: Nuclear parton distributions with LHC data
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• Energy dependence of dissociative $J/\psi$ photoproduction as a signature of gluon saturation at the LHC
• Evidence for color fluctuations in the nucleon in high-energy scattering
• Ultra-peripheral collisions and hadronic structure
• The effect of the fluctuating proton size on the study of chiral magnetic effect in proton-nucleus collisions

Cited by in corpus (16)

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• Selected topics in diffraction with protons and nuclei: past, present, and future
• Diffractive incoherent vector meson production off protons: a quark model approach to gluon fluctuation effects
• Exclusive photoproduction of excited quarkonia in ultraperipheral collisions
• Observation of strong nuclear suppression in exclusive $J/\psi$ photoproduction in Au$+$Au ultra-peripheral collisions at RHIC
• First measurement of the $|t|$-dependence of incoherent J/$\psi$ photonuclear production
• Exclusive $J/\psi$, $\psi (2s)$, and $e^{+}{e}^{-}$ pair production in Au$+$Au ultra-peripheral collisions at RHIC
• Coherent and incoherent $J/\Psi$ photoproduction in $PbPb$ collisions at the LHC, HE -- LHC and FCC
• Incoherent $\rho$ meson photoproduction in ultraperipheral nuclear collisions at the LHC
• Probing gluon fluctuations in nuclei with the first energy-dependent measurement of incoherent J/$\psi$ photoproduction in ultraperipheral PbPb collisions
• Probing Quantum Phenomena through Photoproduction in Relativistic Heavy-Ion Collisions
• Photoproduction of $J/\psi$ in d+Au ultraperipheral collisions at the BNL Relativistic Heavy Ion Collider
• Probing the gluonic structure of the deuteron with $J/\psi$ photoproduction in d+Au ultra-peripheral collisions
• Analysis of $J/\psi$ and $\psi (2S)$ Charmonium Production in Ultraperipheral Lead-Lead and Proton-Lead Collisions at LHC Energies