Photoproduction of the double $J/\psi$ (${\rm Y}$) at the LHC with forward proton tagging

Abstract

We calculate the photoproduction of double $J/\psi$ (${\rm Y}$) to leading order based on the nonrelativistic quantum chromodynamics factorization framework at the Large Hadron Collider with forward proton tagging. The numerical results of double $J/\psi$ photoproduction pp $\to$ p$\gamma$p $\to$ $J/\psi$ + $J/\psi$ with different forward detector acceptances ($\xi$) are presented. The total cross section of double $J/\psi$ photoproduction is less than 200 fb with 0.1 $<$ $\xi$ $<$ 0.5, but can reach about 1.37(1.27) pb with 0.0015 $<$ $\xi$ $<$ 0.5 ( 0.0015 $<$ $\xi$ $<$ 0.15 ). The double $J/\psi$ photoproduction may have the potential to be detected and provide an interesting signature, thus is useful for studying the mechanism of heavy quarkonium production. We also predict the double ${\rm Y}$ photoproduction and find they are, unfortunately, small (with less than 10 fb).

11 pages, 7 figures, version as it appears in Phys.Rev.D

References in corpus (22)

• Heavy quarkonium: progress, puzzles, and opportunities
• J/psi, psi' and Upsilon Production at Hadron Colliders: a review
• Hadroproduction of J/psi and Upsilon in association with a heavy-quark pair
• Relativistic corrections to $J/\psi$ exclusive and inclusive double charm production at B factories
• Measurement of prompt J/psi pair production in pp collisions at sqrt(s) = 7 TeV
• Next-to-Leading-Order QCD corrections to J/ψ(Υ)+γproduction at the LHC
• Factorization and NLO QCD correction in e^+ e^- \to J/ψ(ψ(2S))+ χ_{c0} at B Factories}
• Heavy Quarkonium Production at Collider Energies: Partonic Cross Section and Polarization
• QCD corrections to double J/ψproduction in e+e- annihilation at \sqrt{s}=10.6 GeV
• Complete Nonrelativistic-QCD Prediction for Prompt Double $J/\psi$ Hadroproduction
• Observation of $e^{+}{e}^{-}\to \eta J/\psi$ at center-of-mass energy $sqrts=4.009$ GeV
• Associated production of a quarkonium and a Z boson at one loop in a quark-hadron-duality approach
• Production of $J/\psi +{\chi }_c$ and $J/\psi +J/\psi$ with real gluon emission at LHC
• Anomalous Wtb couplings in gamma-proton collision at the LHC
• Double parton scattering in pair-production of $J/\psi$ mesons at the LHC revisited
• Dark Matter Searches in Jet plus Missing Energy in $\gamma \mathrm{p}$ collision at CERN LHC
• Exploring anomalous $HZ\gamma$ couplings in $\gamma$-proton collisions at the LHC
• Understanding the cross section of $e^{+}{e}^{-}\to \eta J/\psi$ process via nonrelativistic QCD
• Relativistic corrections to $J/\psi$ polarization in photo- and hadroproduction
• NLO QCD corrections to Single Top and W associated production at the LHC with forward detector acceptances
• Search for Kaluza-Klein gravitons in extra dimension models via forward detectors at the LHC
• Di-J/psi production at the Tevatron and the LHC