# Nuclear Physics Seminar

## Recent Flow Results from ATLAS

### Jiangyong Jia (Stony Brook University)

#### Thursday, October 17th, 2013, 11:10 am

In recent years, the measurement of harmonic flow coefficients vn has provided important insight into the hot and dense matter created in heavy ion collisions at RHIC and LHC. These coefficients are now understood to reflect the hydrodynamic response to the collision geometry in the initial state. This talk present recent ATLAS measurements on vn coefficients, correlations between event planes of different orders and event-by-event distributions of vn in Pb+Pb collisions at $\sqrt{\mathrm{sNN}}$=2.76 TeV. These measurements have provided new constraints on the initial geometry fluctuation, and have revealed strong non-linear effects in the hydrodynamic response of the produced medium to the initial geometry.

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