Darmstadt 2016 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 40: Heavy Ion Collision and QCD Phases IX
HK 40.4: Vortrag
Mittwoch, 16. März 2016, 17:30–17:45, S1/01 A01
J/ψ production in Pb-Pb collisions with ALICE at the LHC — •RAUL TONATIUH JIMENEZ BUSTAMANTE1,2, PASCAL DILLENSEGER3, and DENNIS WEISER2 for the ALICE collaboration — 1Research Division and ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany — 2Physikalisches Institut, Heidelberg Universität, Heidelberg, Germany — 3Institut für Kernphysik, Goethe-Universität Frankfurt, Frankfurt, Germany
Charmonium production provides insights into and hottest stages of nucleus-nucleus collisions where the formation of a Quark-Gluon Plasma is expected. The ALICE experiment at the CERN LHC has measured charmonium at low transverse momentum (pT). At central rapidity (|y|<0.9) J/ψ is reconstructed via its e+ e− decay channel, whereas at forward rapidity (2.5<y<4) J/ψ is reconstructed into µ+ µ− pairs. In this talk the ALICE results in Pb-Pb collisions on the inclusive J/ ψ at √sNN=2.76 TeV and comparisons to theoretical model calculations will be presented. A first look on the J/ψ analysis in the recent data acquired at √sNN=5.02 TeV will be also shown.