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arXiv · 1201.2262

D meson nuclear modification factors in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV measured with the ALICE detector at the CERN-LHC

Alessandro Grelli
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Abstract

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.

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Alessandro Grelli. 2012-01-11. D meson nuclear modification factors in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV measured with the ALICE detector at the CERN-LHC. https://doi.org/10.5506/aphyspolbsupp.5.585

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