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J/\psi\ and \psi' production in proton(deuteron)-nucleus collisions: lessons from RHIC for the proton-lead LHC run

Abstract : We study the impact of different cold nuclear matter effects both on J/\psi\ and \psi' production, among them the modification of the gluon distribution in bound nucleons, commonly known as gluon shadowing, and the survival probability for a bound state to escape the nucleus --the nuclear absorption. Less conventional effects such as saturation and fractional energy loss are also discussed. We pay a particular attention to the recent PHENIX preliminary data on \psi' production in dAu collisions at sqrt{s}=200 GeV, which show a strong suppression for central collisions, 5 times larger than the one obtained for J/\psi\ production at the same energy. We conclude that none of the abovementioned mechanisms can explain this experimental result.
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http://hal.in2p3.fr/in2p3-00772238
Contributor : Sophie Heurteau <>
Submitted on : Thursday, January 10, 2013 - 11:39:42 AM
Last modification on : Wednesday, September 16, 2020 - 4:08:31 PM

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E G Ferreiro, F Fleuret, J P Lansberg, A Rakotozafindrabe. J/\psi\ and \psi' production in proton(deuteron)-nucleus collisions: lessons from RHIC for the proton-lead LHC run. International Conference on Heavy Ion Collisions in the LHC Era, Jan 2013, Quy Nhon, Vietnam. pp.012018, ⟨10.1088/1742-6596/422/1/012018⟩. ⟨in2p3-00772238⟩

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