27 May 2012 to 1 June 2012
Cagliari - Italy
Europe/Rome timezone

Hadron Correlations in ATLAS

29 May 2012, 11:20
25m
Plenary room T1 A+B (Cagliari - Italy)

Plenary room T1 A+B

Cagliari - Italy

T-Hotel Conference Centre
Oral presentation Plenary 2B

Speaker

Soumya Mohapatra (Stony Brook University)

Description

Hadron correlations are important tools used to study the properties of the medium produced in relativistic heavy ion collisions. We present detailed measurements of flow harmonics $v_{2}$-$v_{6}$ via di-hadron correlations in broad $p_{T}$, $\Delta\eta$ and centrality ranges using the 2010 Pb+Pb data from ATLAS. These measurements are compared to the corresponding values obtained via event-plane measurements. This result provides new insights on the origin of the long range "ridge" structure over broad $\pT$ ranges. Measurements of the dipolar flow ($v_{1}$) associated with initial dipole asymmetry as function of $p_{T}$ and centrality are also presented. Finally, the results of correlations between harmonic planes of different orders measured via two-plane and three-plane correlations are also discussed.

Primary author

Soumya Mohapatra (Stony Brook University)

Presentation materials