Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2012-01-11
Physics
Nuclear Physics
Nuclear Experiment
6 pages, SQM 2011 Conference Proceedings
Scientific paper
The properties of the hot and dense QCD medium formed in ultra-relativistic heavy ion collisions, as well as the mechanism of in-medium partonic energy loss, can be accessed via the study of the D mesons nuclear modification factor. The ALICE experiment has measured D meson production in pp and Pb-Pb collisions at the LHC at $\sqrt{s}$ =7 and 2.76 TeV and at $\sqrt{s_{NN}}$ = 2.76 TeV, respectively, via the exclusive reconstruction of hadronic decay channels. D mesons are selected by exploiting the high-resolution tracking performance and the hadron identification capabilities of the ALICE detectors. In this contribution we report on the analyses of the D$^0\rightarrow $K$^-\pi^+$, the D$^+ \rightarrow $K$^- \pi^+ \pi^+$ and the D$^{*+}\rightarrow $D$^0 \pi^+$ channels. The preliminary results on D mesons nuclear modification factors are presented.
for the ALICE Collaboration
Grelli Alessandro
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