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

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${}^0\to$K${}^{-}{\pi }^{+}$, the D${}^{+}\to$K${}^{-}{\pi }^{+}{\pi }^{+}$ and the D${}^{\ast +}\to$D${}^0{\pi }^{+}$ channels. The preliminary results on D mesons nuclear modification factors are presented.

6 pages, SQM 2011 Conference Proceedings

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Cited by in corpus (2)

• Identified-particle production and spectra with the ALICE detector in pp and Pb-Pb collisions at the LHC
• Open charm hadron production via hadronic decays at STAR