In minimum bias (0-80%) Au+Au collisions at $\sqrt{ s_{ NN}}$=200 GeV, the elliptic flow ($v_{ 2}$) measurements for di-electrons from the low to intermediate mass region are presented. The differential elliptic flow as a function of transverse momentum in different mass regions are also reported. The simulated and measured $v_{ 2}$ of di-electrons are compared in the mass regions of $M_{ ee}<0.14$ GeV/$c^{ 2}$ and $0.14<M_{ ee}<0.3$ GeV/$c^{ 2}$.
Categories: nucl-ex hep-ex