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Study of Azimuthal Anisotropy of High-pT Charged Particles in Au Au Collisions at √sNN = 200 GeV with RHIC-PHENIX

, for the PHENIX Collaboration
Department of Physics, Nara Women’s University, Nara 630-8506, Japan
Presented at Hot Quarks 2018—Workshop for young scientists on the physics of ultra relativistic nucleus-nucleus collisions, Texel, The Netherlands, 7–14 September 2018.
Proceedings 2019, 10(1), 42; https://doi.org/10.3390/proceedings2019010042
Published: 29 April 2019
PDF [509 KB, uploaded 14 May 2019]

Abstract

We study the path length dependence of energy-loss in the Quark Gluon Plasma (QGP) by measuring the azimuthal anisotropy coefficient and transverse momentum ( p T ) spectra for charged hadrons in Au + Au at s N N = 200 GeV at the RHIC-PHENIX experiment. To estimate the strength of the energy-loss as a function of p T , we use the Δ p T which is the difference of p T which provide the same yields at in-plane and out-of-plane directions. The results indicate that there are different structures between low- p T and high- p T regions. At high- p T , the size of Δ p T increases as the centrality goes up. We also calculate the difference of the path length of in-plane and out-of-plane directions for each centrality. The difference of the path length increases along with the centrality and the tendency is the same with the Δ p T results.
Keywords: Quark Gluon Plasma; Azimuthal anisotropy; energy-loss; high transverse momentum Quark Gluon Plasma; Azimuthal anisotropy; energy-loss; high transverse momentum
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Nishitani, R., , for the PHENIX Collaboration; Study of Azimuthal Anisotropy of High-pT Charged Particles in Au Au Collisions at √sNN = 200 GeV with RHIC-PHENIX. Proceedings 2019, 10, 42.

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