Publication : t01/036

$J/\psi$ suppression in central Pb-Pb collisions

Dinh P.M. (CEA, DSM, SPhT (Service de Physique Théorique), F-91191 Gif-sur-Yvette, FRANCE)
Blaizot J.-P. (CEA, DSM, SPhT (Service de Physique Théorique), F-91191 Gif-sur-Yvette, FRANCE)
Ollitrault J.-Y. (CEA, DSM, SPhT (Service de Physique Théorique), F-91191 Gif-sur-Yvette, FRANCE)
Abstract:
We discuss the recent NA50 $J/\psi$ production data in Pb--Pb collisions, in particular the second drop at high transverse energies which correspond to the most central collisions. Using a model which relates the $J/\psi$ suppression to the local energy density, we show that the data can be explained by taking into account transverse energy fluctuations at a given impact parameter. Predictions of this model for RHIC are briefly discussed.
Année de publication : 2002
Revue : Nucl. Phys. A 698 579c-582c (2002)
Communication : in: Proceedings of the 15th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions (Quark Matter'2001) ; Long Island, New York, USA ; 2001-01-15 / 2001-01-20
Preprint : arXiv:nucl-th/0103083
PACS : 25.75.-q 25.75.Dw
Langue : Anglais
Editeurs : Hallman T.J., Kharzeev D.E., Mitchell J.T., Ullrich T.

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