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J/psi suppression in p-A collisions from parton energy loss in cold QCD matter

Authors :
Arleo, F.
Peigné, S.
Laboratoire d'Annecy-le-Vieux de Physique Théorique (LAPTH)
Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)
Laboratoire SUBATECH Nantes (SUBATECH)
Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Source :
Physical Review Letters, Physical Review Letters, American Physical Society, 2012, 109, pp.122301. ⟨10.1103/PhysRevLett.109.122301⟩
Publication Year :
2012
Publisher :
HAL CCSD, 2012.

Abstract

The effects of energy loss in cold nuclear matter on J/psi suppression in p-A collisions are studied. A simple model based on first principles and depending on a single free parameter is able to reproduce J/psi suppression data at large xF and at various center-of-mass energies. These results strongly support energy loss as a dominant effect in quarkonium suppression. They also give some hint on its hadroproduction mechanism suggesting color neutralization to happen on long time-scales. Predictions for J/psi and Upsilon suppression in p-Pb collisions at the LHC are made.<br />Comment: 4 pages, 4 figures

Details

Language :
English
ISSN :
00319007 and 10797114
Database :
OpenAIRE
Journal :
Physical Review Letters, Physical Review Letters, American Physical Society, 2012, 109, pp.122301. ⟨10.1103/PhysRevLett.109.122301⟩
Accession number :
edsair.doi.dedup.....c548535c4ececc2b9b9abd015bd8a083