# Quark Matter 2018

13-19 May 2018
Venice, Italy
Europe/Zurich timezone
The organisers warmly thank all participants for such a lively QM2018! See you in China in 2019!

## PHENIX Measurements of collectivity in $Au+Au$ collisions from higher order cumulants and flow unfolding

15 May 2018, 15:40
20m
Sala Perla, 1st Floor (Palazzo del Casinò)

### Sala Perla, 1st Floor

#### Palazzo del Casinò

Parallel Talk Correlations and fluctuations

### Speaker

Kurt Keys Hill (University of Colorado Boulder (US))

### Description

Detailed measurements of collectivity in Au+Au collisions at RHIC provide a key
connection between the initial geometry of the deposited energy and the
hydrodynamic evolution of the medium. Utilizing the PHENIX silicon detectors, we present new measurements of flow coefficients extending over a wide range in pseudorapidity $-3 < \eta < 3$ and to higher $p_T$. Over a broad range in centrality, we present cumulant results $v_2\{2\}$ - $v_2\{8\}$ and $v_3\{2\}$ - $v_3\{6\}$ with different methods for isolating flow and non-flow contributions. Complementing these results, we present flow coefficient unfolded distributions and compare them directly with theoretical models with event-by-event fluctuations. We also present a first look at symmetric cumulants of different orders.

Content type Experiment Presenter name already specified PHENIX

### Primary author

Gabor David (Brookhaven National Laboratory)