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Title: Observables for longitudinal flow correlations in heavy-ion collisions

In this paper, we propose several new observables/correlators, based on correlations between two or more subevents separated in pseudorapidity η, to study the longitudinal flow fluctuations. We show that these observables are sensitive to the event-by-event fluctuations, as a function of η, of the initial condition as well as the nonlinear mode-mixing effects. Finally, experimental measurement of these observables shall provide important new constraints on the boost-variant event-by-event initial conditions required by all 3+1-dimensional viscous hydrodynamics models.
Authors:
 [1] ;  [2] ;  [3] ;  [4]
  1. Stony Brook Univ., NY (United States). Dept. of Chemistry; Brookhaven National Lab. (BNL), Upton, NY (United States). Physics Dept.
  2. Stony Brook Univ., NY (United States). Dept. of Chemistry
  3. Shanghai Institute of Applied Physics, Chinese Academy of Sciences (China)
  4. Stony Brook Univ., NY (United States). Dept. of Chemistry; Shanghai Institute of Applied Physics, Chinese Academy of Sciences (China); University of Chinese Academy of Sciences, Beijing (China)
Publication Date:
Report Number(s):
BNL-114112-2017-JA
Journal ID: ISSN 0954-3899; R&D Project: PO 004; KB0202012
Grant/Contract Number:
SC0012704
Type:
Accepted Manuscript
Journal Name:
Journal of Physics. G, Nuclear and Particle Physics
Additional Journal Information:
Journal Volume: 44; Journal Issue: 7; Journal ID: ISSN 0954-3899
Publisher:
IOP Publishing
Research Org:
Brookhaven National Lab. (BNL), Upton, NY (United States). Relativistic Heavy Ion Collider (RHIC)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Relativistic Heavy Ion Collider
OSTI Identifier:
1392213