Photoproduction of $J/\psi$ mesons in peripheral and semi-central heavy ion collisions

Abstract

We calculate total and differential cross sections for $J/\psi$ photoproduction in ultrarelativistic lead-lead collisions at the LHC energy $\sqrt{s_{NN}}=2.76$ TeV. In the present approach we use a simple model based on vector dominance picture and multiple scattering of the hadronic ($c\bar{c}$) state in a cold nucleus as an example. In our analysis we use both the classical mechanics and quantum (Glauber) formulae for calculating ${\sigma }_{tot}(J/\psi Pb)$ which is a building block of our model. We compare our UPC results with ALICE and CMS data. For semi-central collisions ($b<R_A+R_B$) a modification of the photon flux seems necessary. We discuss different physics motivated approximations. We try to estimate the cross sections for different centrality bins and for $J/\psi$ mesons emitted in forward rapidity range ($2.5<y<4$) corresponding to recent ALICE experimental results. Reasonable results are obtained but open questions are discussed.

15 pages, 9 figures and 4 tables

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Cited by in corpus (26)

• The ALICE experiment: a journey through QCD
• Properties of the QCD Matter -- An Experimental Review of Selected Results from RHIC BES Program
• Measurement of an excess in the yield of J/$\psi$ at very low $p_{\mathrm{T}}$ in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Photonuclear and Two-photon Interactions at High-Energy Nuclear Colliders
• Coherent and incoherent $J/\psi$ photonuclear production in an energy-dependent hot-spot model
• Initial transverse-momentum broadening of Breit-Wheeler process in relativistic heavy-ion collisions
• Coherent J/$\psi$ photoproduction in hadronic heavy-ion collisions
• An experimental review of open heavy flavor and quarkonium production at RHIC
• Coherent lepton pair production in hadronic heavy ion collisions
• Two-photon production of dilepton pairs in peripheral heavy ion collisions
• Small $x$ gluon shadowing from LHC data on coherent $J/\psi$ photoproduction
• Charmonium Coherent Photoproduction and Hadroproduction with Effects of Quark Gluon Plasma
• Dilepton Radiation in Heavy-Ion Collisions at Small Transverse Momentum
• Centrality dependence of dilepton production via $\gamma \gamma$ processes from Wigner distributions of photons in nuclei
• Coherent photo-produced J$/\psi$ and dielectron yields in isobaric collisions
• From the $\gamma \gamma \to p\bar{p}$ reaction to the production of $p\bar{p}$ pairs in ultraperipheral ultrarelativistic heavy-ion collisions at the LHC
• Incoherent diffractive photoproduction of $J/\psi$ and ${\rm Y}$ on heavy nuclei in the color dipole approach
• Heavy Mesons Photoproduction in Peripheral AA Collisions
• Challenges to the Good-Walker paradigm in coherent and incoherent photoproduction
• Photoproduction of low-$p_{\mathrm{T}}$ J/$\psi$ from peripheral to central Pb$-$Pb collisions at 5.02 TeV
• Inclusive heavy quark photoproduction in $pp$, $pPb$ and $PbPb$ collisions at Run 2 LHC energies
• $J/\Psi$ Photoproduction in Peripheral AA Collisions
• Photoproduction of J/$\psi$ in non-single-diffractive p+p collisions
• Photoproduction of vector mesons: from ultraperipheral to semi-central heavy ion collisions
• Coherent J/$\psi$ photoproduction at midrapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• The reggeometric pomeron and exclusive production of $J/\psi$ and $\psi (2S)$ in ultraperipheral collisions at the LHC