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ϒ production in p(d)A collisions at RHIC and the LHC

Ferreiro, E. G. ; Fleuret, F. ; Lansberg, J. P. ; Matagne, N. ; Rakotozafindrabe, A.

The European physical journal. C, Particles and fields, 2013-05, Vol.73 (5), p.1-8, Article 2427 [Periódico revisado por pares]

Berlin/Heidelberg: Springer-Verlag

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Título:
ϒ production in p(d)A collisions at RHIC and the LHC
Autor: Ferreiro, E. G. ; Fleuret, F. ; Lansberg, J. P. ; Matagne, N. ; Rakotozafindrabe, A.
Assuntos: Astronomy ; Astrophysics and Cosmology ; Collisions ; Elementary Particles ; Gluons ; Hadrons ; Heavy Ions ; Measurement Science and Instrumentation ; Nuclear Energy ; Nuclear matter ; Nuclear Physics ; Nuclei ; Physics ; Physics and Astronomy ; Pictures ; Quantum Field Theories ; Quantum Field Theory ; Quarks ; Regular Article - Theoretical Physics ; Saturation ; String Theory
É parte de: The European physical journal. C, Particles and fields, 2013-05, Vol.73 (5), p.1-8, Article 2427
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: We study the effect of nuclear matter in ϒ production in d Au collisions at RHIC and p Pb collisions at the LHC. We find that the nuclear modification factor, , measured at RHIC is not satisfactorily reproduced by the conventional effects used in the literature, namely the modification of the gluon distribution in bound nucleons and an—effective—survival probability for a bound state to escape the nucleus. In particular, we argue that this probability should be close to 1 as opposed to the J / ψ case. We note that, at backward rapidities, the unexpected suppression of observed by PHENIX hints at the presence of a gluon EMC effect, analogous to the quark EMC effect—but likely stronger. Further nuclear matter effects, such as saturation and fractional energy loss, are discussed, but none of them fit in a more global picture of quarkonium production. Predictions for ϒ ( nS ) for the forthcoming p Pb run at 5 TeV at the LHC are also presented.
Editor: Berlin/Heidelberg: Springer-Verlag
Idioma: Inglês

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ϒ production in p(d)A collisions at RHIC and the LHC

Ferreiro, E. G. ; Fleuret, F. ; Lansberg, J. P. ; Matagne, N. ; Rakotozafindrabe, A.

Berlin/Heidelberg: Springer-Verlag

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