PHENIX results on charged-hadron azimuthal anisotropies in Au + Au collisions at center-of-mass energies from 39 to 200 GeV

The energy dependence of the azimuthal anisotropy of second (third) harmonics v2(v3) are measured for charged hadron as a function of the transverse momentum (pT) in several centrality bins in Au + Au collisions by the PHENIX experiment at RHIC. In each centrality, vn vs. pT agrees within the uncertainties from sNN=39 to 200 GeV. Also, the 2014 data significantly improve the statistical precision compared to previous results for v2 measurement in Au + Au collisions at sNN=200 GeV. The new measurement shows that v2 is positive up to pT = 10 GeV/c and charged hadron v2 is different from π0v2 for pT < 7 GeV/c. Moreover, forward/backward v2(v3) and local dN/dη are newly measured at 3<|η|<3.9 in asymmetric Cu + Au collisions. The result indicates that vn(Au-going)/ε are consistent to vn(Cu-going)/ε as a function of dN/dη when using ε determined from a combination of Au and Cu constituents.