Nonsaturation of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="italic">J</mml:mi><mml:mi>/</mml:mi><mml:mi mathvariant="italic">ψ</mml:mi></mml:math>Suppression at Large Transverse Energy in the Comovers Approach

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.