Speaker
Dr
Andrea Rossi
(Sezione di Padova (INFN)-Universita e INFN)
Description
The comparison of heavy flavour production in proton-proton and heavy-ion collisions allows to probe the properties of the high-density QCD medium formed in the latter and to study the mechanism of in-medium partonic energy loss. The ALICE experiment has measured the D meson production in pp and Pb--Pb collisions at the LHC at $\sqrt{s}=7$ and $2.76~{\rm TeV}$ and $\sqrt{s_{NN}} = 2.76~{\rm TeV}$ respectively, via the exclusive reconstruction of hadronic decay channels. The D meson decay vertices, displaced by few hundred microns from the main interaction point, are selected by exploiting the high-resolution tracking performance and the hadron identification capabilities of the ALICE detectors. The analyses of the ${\rm D^{0} \rightarrow K^{-}\pi^{+}}$ and ${\rm D^{+} \rightarrow K^{-}\pi^{+}\pi^{+}}$ channels will be described and the preliminary results for the ${\rm D^{0}}$ and ${\rm D^{+}}$ nuclear modification factor will be presented.
Primary author
Dr
Andrea Rossi
(Sezione di Padova (INFN)-Universita e INFN)
