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

L. Adamczyk , Martin Girard , Daniel Kikoła , Adam Kisiel , Katarzyna Poniatowska , Hanna Zbroszczyk , Jan Pluta

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.

Collective authorJ.K. Adkins, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, N.N. Ajitanand, I. Alekseev, Deryk .....
Author L. Adamczyk - [Akademia Górnicza w Krakowie (AGH)]
L. Adamczyk,,
-
- Akademia Górnicza w Krakowie (AGH)
, Martin Girard (FP / NPD)
Martin Girard,,
- Nuclear Physics Division
, Daniel Kikoła (FP / NPD)
Daniel Kikoła,,
- Nuclear Physics Division
, Adam Kisiel (FP / NPD)
Adam Kisiel,,
- Nuclear Physics Division
, Katarzyna Poniatowska (FP / NPD)
Katarzyna Poniatowska,,
- Nuclear Physics Division
, Hanna Zbroszczyk (FP / NPD)
Hanna Zbroszczyk,,
- Nuclear Physics Division
, Jan Pluta (FP / NPD)
Jan Pluta,,
- Nuclear Physics Division
Journal seriesPhysics Letters B, [Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics], ISSN 0370-2693, e-ISSN 1873-2445, (N/A 140 pkt)
Issue year2019
Vol790
Pages81-88
ASJC Classification3106 Nuclear and High Energy Physics
DOIDOI:10.1016/j.physletb.2018.10.075
Languageen angielski
Score (nominal)140
Score sourcejournalList
ScoreMinisterial score = 140.0, 09-01-2020, ArticleFromJournal
Publication indicators Scopus Citations = 1; WoS Citations = 1; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.548; WoS Impact Factor: 2018 = 4.162 (2) - 2018=3.627 (5)
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