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Constraining the initial conditions and temperature dependent viscosity with three-particle correlations in Au+Au collisions

Adamczyk, L.
•
Adkins, J. K.
•
Agakishiev, G.
altro
Zyzak, M.
2019
  • journal article

Periodico
PHYSICS LETTERS. SECTION B
Abstract
We present three-particle mixed-harmonic correlations cos(mφa + nφb − (m + n)φc ) for harmonics m, n = 1 − 3 for charged particles in √ sNN = 200 GeV Au+Au collisions at RHIC. These measurements provide information on the three-dimensional structure of the initial collision zone and are important for constraining models of a subsequent low-viscosity quark–gluon plasma expansion phase. We investigate correlations between the first, second and third harmonics predicted as a consequence of fluctuations in the initial state. The dependence of the correlations on the pseudorapidity separation between particles show hints of a breaking of longitudinal invariance. We compare our results to a number of state-of-the art hydrodynamic calculations with different initial states and temperature dependent viscosities. These measurements provide important steps towards constraining the temperature dependent viscosity and longitudinal structure of the initial state at RHIC.
DOI
10.1016/j.physletb.2018.10.075
WOS
WOS:000460118200009
Archivio
http://hdl.handle.net/11368/2941700
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85060078361
http://www.sciencedirect.com/science/journal/03702693
Diritti
open access
license:creative commons
license uri:http://creativecommons.org/licenses/by/4.0/
FVG url
https://arts.units.it/bitstream/11368/2941700/1/1-s2.0-S0370269318309778-main.pdf
Soggetti
  • QUark gluon plasma

  • heavy ion

  • viscosity

  • RHIC

  • STAR

  • correlations

Web of Science© citazioni
2
Data di acquisizione
Mar 28, 2024
Visualizzazioni
2
Data di acquisizione
Apr 19, 2024
Vedi dettagli
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