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Nonsaturation of the J/psi suppression at large transverse energy in the comovers approach
1Laboratoire de Physique Theorique, Unite Mixte de Recherche-CNRS-UMR No. 8627, Universite de Paris-Sud, Batiment 210, F-91405 Orsay Cedex, France.
Physical Review Letters
|September 6, 2000
Abstract:
We show that, contrary to recent claims, the J/psi suppression resulting from its interaction with comovers does not saturate at large transverse energy E(T). On the contrary, it shows a characteristic structure-a change of curvature near the knee of the E(T) distribution-which is due to the E(T) (or multiplicity) fluctuation. This change of curvature is also present in recent experimental results, although the experimetal effect is larger than in our calculation.