Longitudinal decorrelation measures of flow magnitude and event-plane angles in ultrarelativistic nuclear collisions

Piotr Bożek and Wojciech Broniowski
Phys. Rev. C 97, 034913 – Published 21 March 2018

Abstract

We discuss the forward-backward correlations of harmonic flow in Pb+Pb collisions at the CERN Large Hadron Collider, applying standard multibin measures as well as new measures proposed here. We illustrate the methods with hydrodynamic model simulations based on event-by-event initial conditions from the wounded quark model with asymmetric rapidity emission profiles. Within the model, we examine independently the event-plane angle and the flow magnitude decorrelations. We find a specific hierarchy between various flow decorrelation measures and confirm certain factorization relations. We find qualitative agreement of the model and the data from the ATLAS and CMS Collaborations.

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  • Received 20 November 2017

DOI:https://doi.org/10.1103/PhysRevC.97.034913

©2018 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

Piotr Bożek1,* and Wojciech Broniowski2,3,†

  • 1Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, aleja Mickiewicza 30, 30-059 Cracow, Poland
  • 2The H. Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, 31-342 Cracow, Poland
  • 3Institute of Physics, Jan Kochanowski University, 25-406 Kielce, Poland

  • *Piotr.Bozek@fis.agh.edu.pl
  • Wojciech.Broniowski@ifj.edu.pl

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Issue

Vol. 97, Iss. 3 — March 2018

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