Differential flow correlations in relativistic heavy-ion collisions

Jing Qian, Ulrich Heinz, Ronghua He, and Lei Huo
Phys. Rev. C 95, 054908 – Published 18 May 2017

Abstract

A systematic analysis of correlations between different orders of pT-differential flow is presented, including mode coupling effects in flow vectors, correlations between flow angles (a.k.a. event-plane correlations), and correlations between flow magnitudes, all of which were previously studied with integrated flows. We find that the mode coupling effects among differential flows largely mirror those among the corresponding integrated flows, except at small transverse momenta where mode coupling contributions are small. For the fourth- and fifth-order flow vectors V4 and V5 we argue that the event plane correlations can be understood as the ratio between the mode-coupling contributions to these flows and the flow magnitudes. We also find that, for V4 and V5, the linear-response contribution scales linearly with the corresponding cumulant-defined eccentricities but not with the standard eccentricities.

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  • Received 12 March 2017

DOI:https://doi.org/10.1103/PhysRevC.95.054908

©2017 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

Jing Qian1,*, Ulrich Heinz2, Ronghua He1, and Lei Huo1

  • 1Department of Physics, Harbin Institute of Technology, Harbin, 150001, People's Republic of China
  • 2Department of Physics, The Ohio State University, Columbus, Ohio 43210-1117, USA

  • *qianjing8758@gmail.com

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Issue

Vol. 95, Iss. 5 — May 2017

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