J/psi production in pp and Pb-Pb with ALICE at the LHC

TL;DR

This paper reports on ALICE's measurements of J/psi production in proton-proton and lead-lead collisions at the LHC, providing insights into the properties of the Quark Gluon Plasma through quarkonium suppression patterns.

Contribution

It presents new experimental results on J/psi production in different collision systems and energies, advancing understanding of quarkonium behavior in heavy ion collisions.

Findings

J/psi production measured at mid- and forward-rapidities

Data collected at sqrt(s)=2.76 and 7 TeV for pp, 2.76 TeV for Pb-Pb

Results contribute to understanding QGP effects on quarkonium suppression

Abstract

ALICE is the Large Hadron Collider (LHC) experiment dedicated to the study of heavy ion collisions. The main purpose of ALICE is to investigate the properties of a new state of deconfined nuclear matter, the Quark Gluon Plasma (QGP). Quarkonium measurements will play a crucial role in this investigation due to the interplay of several competing mechanisms that are predicted to modify its production in the presence of a QGP. During the 2010 and 2011 LHC campaigns, ALICE took pp data at sqrt(s)=2.76 and 7 TeV and Pb-Pb data at sqrt(s_nn)=2.76 TeV. We present the latest results of J/psi production under these conditions, measured by the ALICE experiment at both mid- and forward-rapidities.