Azimuthal elliptic anisotropy (v₂) of high-p_T direct γ in Au+Au collisions at = 200 GeV

Preliminary results from the STAR collaboration for the azimuthal elliptic anisotropy (v₂) of high transverse momentum (p_T) direct photons (γ_dir) produced at midrapidity (|η^γ_dir| < 1) in Au+Au collisions at center-of-mass energy = 200 GeV are presented, and compared to the measured (v₂) of neutral pions (π⁰) in the same kinematic range. The electromagnetic transverse shower profile is used to distinguish π⁰ from direct photons. The measured v₂^γ_dir(p_T) at high p_T (8 < p_T^γ_dir < 20 GeV/c) is found to be smaller than that of π⁰ and consistent with zero when using the forward detectors in determining the event plane