Feb 5 – 11, 2017
Hyatt Regency Chicago
America/Chicago timezone

PHENIX results on charged-hadron azimuthal anisotropies in Au+Au collisions at center-of-mass energies from 39 to 200 GeV

Feb 8, 2017, 3:00 PM
Regency C

Regency C


Maya Shimomura (Nara Women's University (JP))


Measurements of the azimuthal anisotropy coefficients ($v_n$) of particle emission are an established method to characterize the quark gluon plasma (QGP) generated in the high-energy heavy-ions collisions. An important early finding at RHIC was that hydrodynamic calculations can account for the measured anisotropy at low $p_{T}$ and relate them to the collision geometry. At higher $p_{T}$, where hard processes are dominant, energy loss of partons traversing the QGP also creates an azimuthal anisotropy in the final-state hadrons which is related to the collision geometry. In order to better understand the interplay between the soft and hard processes, PHENIX measured the charged-hadron $v_{n}$ coefficients over a wide $p_{T}$ range (up to 10 GeV/$c$) as a function of centrality and beam energy.
In this talk, we will present new $v_{2}$ measurements for charged hadrons in 200 GeV Au+Au collisions as a function of $p_T$ and centrality and compare them to those from $\pi^{0}$ mesons. We will also report the $v_{2}$, $v_{3}$, and $v_{4}$ results for charged hadrons as function of the beam energy from 39 to 200 GeV.

Collaboration PHENIX
Preferred Track Collective Dynamics

Primary author

Maya Shimomura (Nara Women's University (JP))

Presentation materials