Charmonium Dissociation and Recombination: Cold Effects

TL;DR

This paper reviews how $J/$ meson production is affected by Cold Nuclear Matter and Quark-Gluon Plasma effects across different collider energies, discussing models and experimental data interpretations.

Contribution

It provides a comprehensive review of $J/$ suppression and regeneration mechanisms, distinguishing cold nuclear matter effects from QGP effects, with model predictions for LHC data.

Findings

Different effects influence $J/$ production at various energies

Models can explain the experimental data trends

Predictions for LHC data are discussed

Abstract

Thirty years ago, Matsui and Satz proposed the $J/\psi$ destruction as a signal of a Quark Gluon Plasma (QGP) formation, due to the Debye screening between the pair c-cbar. At the light of the recent experimental data, I review the different effects on $J/\psi$ production, from SPS to LHC energies, distinguishing between Cold Nuclear Matter (CNM) and QGP effects. Different possibilities and explanations for the available experimental data are discussed. Model predictions for the arriving LHC data are also presented.