Title: Beam-energy dependence of transverse momentum-flow correlations in RHIC collisions Target

Journal: Physics-Letters-B

PAs: Niseem Magdy (SBU), Olga Evdokimov (UIC), Chunjian Zhang (SBU), Shengli Huang (SBU), Jiangyong Jia (SBU) and Roy Lacey (SBU)

Abstract
Investigations of the correlation between the anisotropic flow harmonics, and the mean transverse momentum termed flow-momentum correlations can give more in-depth insights into the expansion dynamics of ion-ion collisions while providing new constraints for initial-state models and robust extraction of the specific shear viscosity. Unique differential measurements of these flow-momentum correlations are presented for Au+Au collisions at 200, 54, 27 and 19.6 GeV. They indicate characteristic beam-energy-dependent trends, which could serve as essential constraints to discern initial-state models, as well as precision extraction of \eta/s.