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 results on collectivity in d+Au collisions from 200 to 19.6 GeV

15 May 2018, 17:00
2h 40m
First floor and third floor (Palazzo del Casinò)

First floor and third floor

Palazzo del Casinò

Poster Collectivity in small systems

Speaker

Kenta Shigaki (Hiroshima University (JP))

Description

Small system (p+p, p+A, d/He+A) collisions at RHIC and LHC exhibit interesting
azimuthal anisotropies, with explanations varying from geometry coupled to final
state interactions to glasma diagrams to color recombination. The PHENIX
experiment has extended many of these observables to even lower energies with the d+Au beam energy scan at 19.6, 39.0, 62.4, and 200 GeV.

We present results on $v_2$ anisotropies as a function of transverse momentum and pseudorapidity for various centrality selections. We also study multi-particle cumulants ($v_2\{2\}, v_2\{4\}, v_2\{6\})$ that provide additional information about flow, non-flow and event-by-event fluctuations. We compare the results with calculations within the framework of viscous hydrodynamics and parton scattering models (with and without final state interactions). The results provide key evidence for collectivity from the lowest RHIC energies to the highest LHC energies.

Centralised submission by Collaboration Presenter name already specified Experiment PHENIX

Primary author

Gabor David (Brookhaven National Laboratory)

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