https://doi.org/10.1051/epjconf/201714101004
Studies of three-particle correlations and reaction-plane correlators from STAR
Physics Department, Brookhaven National Laboratory, Upton, NY 11973, USA
a e-mail: ptribedy@bnl.gov
Published online: 12 April 2017
We present STAR measurements of various harmonics of three-particle correlations in √SNN = 200 GeV Au+Au collisions at RHIC. The quantity 〈cos(mϕ1 + nϕ2 − (m + n)ϕ3)〉 is measured for inclusive charged particles for different harmonics m and n as a function of collision centrality, transverse momentum pT and relative pseudorapidity Δη. These observables provide detailed information on global event properties like correlations between event planes of different harmonics and are particularly sensitive to the expansion dynamics of the matter produced in the collisions. We compare our measurements to different viscous hydrodynamic models. We argue that these measurements probe the three dimensional structure of the initial state and provide unique ways to constrain the transport parameters involved in hydrodynamic modeling of heavy-ion collisions.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
