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The Transverse Momentum Dependence of Anomalous $J/ψ$ Suppression

D. Kharzeev·M. Nardi·H. Satz
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Abstract

In proton-nucleus and nucleus-nucleus collisions up to central $S-U$ interactions, the $P_T$-dependence of $J/ψ$ production is determined by initial state parton scattering and pre-resonance nuclear absorption (``normal" $J/ψ$ suppression). The ``anomalous" $J/ψ$ suppression in $Pb-Pb$ collisions must reduce the normal $P_T$ broadening, since it occurs mainly in the central part of the interaction region, where also initial state parton scattering and nuclear absorption are strongest. We thus expect for $< P_T^2 >$ in $Pb-Pb$ collisions a turn-over and decrease with increasing $E_T$.

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D. Kharzeev, M. Nardi, H. Satz. 1997-02-06. The Transverse Momentum Dependence of Anomalous $J/ψ$ Suppression. https://doi.org/10.1016/s0370-2693(97)00600-x

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