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Quarkonium suppression from coherent energy loss in fixed-target experiments using LHC beams

Abstract : Quarkonium production in proton-nucleus collisions is a powerful tool to disentangle cold nuclear matter effects. A model based on coherent energy loss is able to explain the available quarkonium suppression data in a broad range of rapidities, from fixed-target to collider energies, suggesting cold energy loss to be the dominant effect in quarkonium suppression in p-A collisions. This could be further tested in a high-energy fixed-target experiment using a proton or nucleus beam. The nuclear modification factors of J/$\psi$ and $\Upsilon$ as a function of rapidity are computed in p-A collisions at $\sqrt{s}=114.6$ GeV, and in p-Pb and Pb-Pb collisions at $\sqrt{s}=72$ GeV. These center-of-mass energies correspond to the collision on fixed-target nuclei of 7 TeV protons and 2.76 TeV lead nuclei available at the LHC.
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http://hal.in2p3.fr/in2p3-01163989
Contributor : Sylvie Flores <>
Submitted on : Tuesday, June 16, 2015 - 7:49:48 AM
Last modification on : Thursday, March 5, 2020 - 6:30:31 PM

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F. Arleo, S. Peigné. Quarkonium suppression from coherent energy loss in fixed-target experiments using LHC beams. Advances in High Energy Physics, Hindawi Publishing Corporation, 2015, 2015, pp.961951. ⟨10.1155/2015/961951⟩. ⟨in2p3-01163989⟩

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