# Quark Matter 2017

5-11 February 2017
Hyatt Regency Chicago
America/Chicago timezone

## D meson $v_n$ harmonics in PbPb collisions at 5.02 TeV with CMS

Not scheduled
2h 30m
Hyatt Regency Chicago

#### Hyatt Regency Chicago

151 East Wacker Drive Chicago, Illinois, USA, 60601
Board: B03
Poster

### Speaker

Hao Qiu (Purdue University (US))

### Description

Because of their large mass, heavy quarks are produced primarily at early stages of heavy-ion collisions, and therefore experience the full evolution of the system and carry information about the extent of thermalization of the QGP. Azimuthal anisotropy parameters ($v_n$) of charm and bottom hadrons provide unique information about the path length dependent interactions between heavy quarks and the medium. At low $p_T$ , the extent to which heavy quarks flow with the medium is a good measure of the interaction strength. At high $p_T$ , the $v_2$ and $v_3$ values resulting from path length dependent energy loss mechanisms provide a powerful tool to study these mechanisms with respect to heavy quarks. With the large PbPb data sample at $\sqrt{s_{NN}}$ = 5.02 TeV collected by the CMS detector during the 2015 LHC run, azimuthal anisotropy $v_2$ and $v_3$ coefficients of $D^0$ mesons are measured over a wide $p_T$ range and at different centralities. In this talk, results of $D^0$ meson $v_n$ parameters are presented and compared to the charged hadron $v_n$ results at the same energy and to theoretical calculations.

Preferred Track Open Heavy Flavors CMS

### Primary author

Hao Qiu (Purdue University (US))