Single electron elliptic flow measurements in Au plus Au collisions from STAR

Recent measurements of elliptic flow (nu(2)) and the nuclear modification factor (R-CP) of strange mesons and baryons in the intermediate p(T) domain in Au + Au collisions demonstrate a scaling with the number of constituent quarks. This suggests hadron production via quark coalescence from a thermalized parton system. Measuring the elliptic flow of charmed hadrons, which are believed to originate rather from fragmentation than from coalescence processes, might therefore change our view of hadron production in heavy-ion collisions. While direct nu(2) measurements of charmed hadrons are currently not available, single electron nu(2) at sufficiently high transverse momenta can serve as a substitute. At transverse momenta above 2 GeV/c, the production of single electrons from non-photonic sources is expected to be dominated by the decay of charmed hadrons. Simulations show a strong correlation between the flow of the charmed hadrons and the flow of their decay electrons for p(T) > 2 GeV/c. We will present preliminary STAR results from our single electron nu(2) measurements from Au + Au collisions at RHIC energies.