2023, Aboona, B. E., Adam, J., Adams, J. R., Agakishiev, G., Alekseev I., Brandin A. V., Kochenda L., Kravtsov P., Nigmatkulov G., Okorokov V. A., Parfenov P., Strikhanov M., Taranenko A., Vasiliev A. N., Алексеев, Игорь Геннадьевич, Брандин, Андрей Владимирович, Нигматкулов, Григорий Александрович, Окороков, Виталий Алексеевич, Парфенов, Петр Евгеньевич, Стриханов, Михаил Николаевич, Тараненко, Аркадий Владимирович, Васильев, Александр Николаевич

The linear and mode-coupled contributions to higher-order anisotropic flow are presented for Au+Au collisions at sNN = 27, 39, 54.4, and 200 GeV and compared to similar measurements for Pb+Pb collisions at the Large Hadron Collider (LHC). The coefficients and the flow harmonics correlations, which characterize the linear and mode-coupled response to the lower-order anisotropies, indicate a beam energy dependence consistent with an influence from the specific shear viscosity (О·/s). In contrast, the dimensionless coefficients, mode-coupled response coefficients, and normalized symmetric cumulants are approximately beam-energy independent, consistent with a significant role from initial-state effects. These measurements could provide unique supplemental constraints to (i) distinguish between different initial-state models and (ii) delineate the temperature (T) and baryon chemical potential (ОјB) dependence of the specific shear viscosity О·s(T,ОјB).