# QM 2011 - XXII International Conference on Ultrarelativistic Nucleus-Nucleus Collisions

May 22 – 28, 2011
Centre Bonlieu
Europe/Zurich timezone

## Neutral Pion production in PbPb collisions at sqrt(s_NN)=2.76 TeV measured by ALICE via photon conversions

Not scheduled
Théâtre National (Centre Bonlieu)

France
Board: 26
Poster Jets

### Speaker

Daniel Lohner (Ruprecht-Karls-Universitaet Heidelberg)

### Description

The neutral pion yield is measured with ALICE by reconstructing photons via their conversion into e+e- pairs. Transverse momentum spectra are presented for pp and PbPb collisions as well as the resulting nuclear modification factor R_AA. The pi0 yield is studied as a function of the emission angle w.r.t. the reaction plane. At high transverse momentum this provides insights into the path-length dependence of jet-quenching. In addition, the reaction plane dependence of the nuclear modification factor R_AA is presented.

### Primary author

Daniel Lohner (Ruprecht-Karls-Universitaet Heidelberg)

### Presentation materials

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