Eur. Phys. J. C (2007) 49: 383-387
https://doi.org/10.1140/epjc/s10052-006-0103-8

Regular Article – Experimental Physics

Azimuthal anisotropy of electrons from heavy flavor decays in  =200 GeV Au-Au collisions at PHENIX

Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki, 305, Japan

^* e-mail: shingo@rcf2.rhic.bn1.gov

Received: 5 August 2006
Published online: 16 November 2006

Abstract

The PHENIX experiment has measured the azimuthal anisotropy parameter v₂, the second harmonic of the azimuthal distribution, for electrons at mid-rapidity (|η|<0.35) as a function of transverse momentum (0.5<p_T (GeV/c)<5.0) in Au+Au collisions at  =200 GeV. From the result we have calculated the non-photonic electron v₂, which is expected to reflect charm quark azimuthal anisotropy, by subtracting the v₂ of electrons from other sources such as photon conversions and Dalitz decays.