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HK: Fachverband Physik der Hadronen und Kerne

HK 41: Schwerionenkollisionen und QCD Phasen

HK 41.7: Vortrag

Donnerstag, 20. März 2014, 15:45–16:00, HZ 6

J/ψ Production in Proton-Lead Collisions with the Central Barrel of ALICE at the LHC — •Michael Winn for the ALICE collaboration — Physikalisches Institut, Universität Heidelberg

The description of J/ψ production in proton-proton and its nuclear modification in proton-nucleus collisions remains challenging for theory based on perturbative QCD and factorization. Furthermore, the investigation of J/ψ in pp and p-A collisions represents an important reference for heavy-ion collisions, where charmonium production is seen as a key observable for deconfinement.

First results of the nuclear modification factor of inclusive J/ψ in proton-lead collisions with the central barrel of ALICE, both integral as well as differential in transverse momentum, will be presented. Model comparisons will be discussed.