Non-saturation of the J/psi suppression at large transverse energy in the comovers approach

TL;DR

It is shown that, contrary to recent claims, the J/psi suppression resulting from its interaction with comovers does not saturate at large transverse energy E(T), and 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.

Abstract

We show that, contrary to recent claims, the $J/ψ$ suppression resulting from its interaction with comovers does not saturate at large transverse energy $E_T$. On the contrary, it shows a characteristic structure - change of curvature near the knee of the $E_T$ distribution - which is due to the $E_T$ (or multiplicity) fluctuation, and agrees with recent experimental results.