Quarkonium Suppression from Coherent Energy Loss in Fixed-Target Experiments Using LHC Beams

被引:7
|
作者
Arleo, Francois [1 ]
Peigne, Stephane [2 ]
机构
[1] Ecole Polytech, CNRS, IN2P3, LLR, F-91128 Palaiseau, France
[2] Univ Nantes, Ecole Mines Nantes, CNRS, SUBATECH,IN2P3,UMR 6457, F-44307 Nantes 3, France
关键词
J/PSI PRODUCTION; COLLISIONS; PHYSICS;
D O I
10.1155/2015/961951
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
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 coherent energy loss in cold nuclear matter 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 root s = 114.6 GeV, and in p-Pb and Pb-Pb collisions at root s = 72GeV. These center-of-mass energies correspond to the collision on fixed-target nuclei of 7 TeV protons and 2.76 TeV (per nucleon) lead nuclei available at the LHC.
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页数:6
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