Heavy-quarkonium suppression in p-A collisions from parton energy loss in cold QCD matter - IN2P3 - Institut national de physique nucléaire et de physique des particules
Journal Articles Journal of High Energy Physics Year : 2013

Heavy-quarkonium suppression in p-A collisions from parton energy loss in cold QCD matter

F. Arleo
S. Peigné

Abstract

The effects of parton energy loss in cold nuclear matter on heavy-quarkonium suppression in p-A collisions are studied. It is shown from first principles that at large quarkonium energy E and small production angle in the nucleus rest frame, the medium-induced energy loss scales as E. Using this result, a phenomenological model depending on a single free parameter is able to reproduce J/psi and Upsilon suppression data in a broad xF-range and at various center-of-mass energies. These results strongly support energy loss as the dominant effect in heavy-quarkonium suppression in p-A collisions. Predictions for J/psi and Upsilon suppression in p-Pb collisions at the LHC are made. It is argued that parton energy loss scaling as E should generally apply to hadron production in p-A collisions, such as light hadron or open charm production.

Dates and versions

in2p3-00861683 , version 1 (13-09-2013)

Identifiers

Cite

F. Arleo, S. Peigné. Heavy-quarkonium suppression in p-A collisions from parton energy loss in cold QCD matter. Journal of High Energy Physics, 2013, 03(2013), pp.122. ⟨10.1007/JHEP03(2013)122⟩. ⟨in2p3-00861683⟩
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