Double quarkonium production at high Feynman-$x$

Abstract

In this paper we give estimates for the proton--proton cross sections into pairs of quarkonium states $J/\psi$, $\psi (2S)$, ${\rm Y}(1S)$ and ${\rm Y}(2S)$ at the scheduled AFTER@LHC energy of $115$GeV. The estimates are based on the intrinsic heavy flavor mechanism which is observable for high values of $x_F$, a range outside the dominance of single parton and double parton scattering.

arXiv comment11 pages, 2 figures, version to be published

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• A Fixed-Target Programme at the LHC: Physics Case and Projected Performances for Heavy-Ion, Hadron, Spin and Astroparticle Studies
• Feasibility Studies for Single Transverse-Spin Asymmetry Measurements at a Fixed-Target Experiment Using the LHC Proton and Lead Beams (AFTER@LHC)
• Production of doubly charmed baryons nearly at rest
• Heavy-ion Physics at a Fixed-Target Experiment Using the LHC Proton and Lead Beams (AFTER@LHC): Feasibility Studies for Quarkonium and Drell-Yan Production
• Phenomenological study for the search of evidence for intrinsic charm at the COMPASS experiment