# Quark Matter 2014 - XXIV International Conference on Ultrarelativistic Nucleus-Nucleus Collisions

19-24 May 2014
Europe/Zurich timezone

## Measurement of $\rm D^0$ azimuthal anisotropy in Pb-Pb collisions with the ALICE detector at the LHC

20 May 2014, 16:30
2h

### spectrum

Board: F-09
Poster Open Heavy Flavour and Quarkonia

### Speaker

Davide Caffarri (CERN)

### Description

The ALICE experiment at the LHC studies ultra-relativistic Pb-Pb collisions with the aim of investigating the properties of the high-density state of strongly-interacting matter, expected to be produced in heavy-ion collisions. Heavy quarks are sensitive probes of the medium properties, since they are formed on a shorter time scale with respect to the medium. The elliptic flow ($v_{2}$) of low $p_{\rm T}$ D mesons can bring insight into the degree of thermalization of charm quarks within the medium. The suppression of the yield of high-$p_{\rm T}$ D mesons, measured in different intervals of azimuthal angles relative to the reaction plane, can give access to the path-length dependence of parton energy loss. ${\rm D}^0 \rightarrow {\rm K}^- \pi^+$ decays have been reconstructed in the central rapidity region in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV, using data recorded during the year 2011. The final results on the $\rm D^0$ meson azimuthal anisotropy in Pb-Pb collisions, for different centrality classes, will be presented and the comparison with theoretical models will be described.
On behalf of collaboration: ALICE

### Primary author

Davide Caffarri (CERN)

 Slides