J/ψ production in Pb-Pb collisions at =2.76 TeV in the ALICE experiment

Workshop for Young Scientists on the Physics of Ultrarelativistic Nucleus–Nucleus Collisions 2012

Lardeux, Antoine^1

SUBATECH, CNRS/IN2P3, Université de Nantes, 4 rue Alfred Kastler, 44307 Nantes, France^1

关键词: Heavy ion collision;    Interacting system;    LHC experiments;    Muon spectrometer;    Nuclear modification factors;    Nucleus-nucleus collision;    Pb-Pb collisions;    Transverse momenta;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/446/1/012042/pdf
DOI  :  10.1088/1742-6596/446/1/012042

来源: IOP

【 摘 要 】

Quarkonium states are expected to provide essential information on the properties of the high-density strongly-interacting system formed in the early stages of heavy-ion collisions. In particular the J/ψ suppression via color screening is a direct consequence of deconfinement. ALICE is the LHC experiment specifically designed to study nucleus-nucleus collisions. The production of heavy quarkonium states is measured by ALICE down to zero transverse momentum via the μ+μ-decay channel in the Forward Muon Spectrometer (2.5 +e-decay channel in the central barrel at mid rapidity (|y|