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

STAR Collaboration

研究成果: Article同行評審

1 引文 斯高帕斯(Scopus)

摘要

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.

原文English
頁(從 - 到)81-88
頁數8
期刊Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
790
DOIs
出版狀態Published - 2019 三月 10

All Science Journal Classification (ASJC) codes

  • 核能與高能物理

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