LHC Results on Charmonium in Heavy Ions

TL;DR

This paper reviews recent experimental results from the LHC on charmonium production in heavy-ion collisions, providing insights into quark-gluon plasma properties and QCD behavior at high energies.

Contribution

It offers a comprehensive review of charmonium measurements in PbPb collisions at LHC, highlighting new experimental findings from the 2010 run.

Findings

Analysis of $J/\psi$ yields and spectra in PbPb collisions

Insights into QGP formation and suppression mechanisms

Comparison of results across ALICE, ATLAS, and CMS

Abstract

In heavy-ion collisions at high energies, the quantum chromodynamics (QCD) predicts the production of the deconfined quark-gluon plasma (QGP) state. Quarkonia ($c\bar{c}$ or $b\bar{b}$ bound states) are a useful means to probe QGP and to investigate the behavior of QCD under the high parton-density environment. Up to now, the large hadron collider (LHC) at CERN provided two runs for PbPb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV in the years 2010 and 2011. The ALICE, ATLAS, and CMS experiments at LHC have analyzed the yields and spectra of the $J/\psi$ and $\Upsilon$ families. In this article, we review particularly the recent charmonium results in PbPb collisions at LHC from the 2010 run.