PHENIX Measurements of Single Electrons from Charm and Bottom Decays at Midrapidity in Au+Au Collisions

McGlinchey, D. and Adare, A. and Afanasiev, S. and Aidala, C. and Ajitanand, N. N. and Csanád, Máté and Csörgő, Tamás and Kincses, Dániel and Kiss, Ádám and Varga-Kőfaragó, Mónika and Nagy, Márton and Novák, Tamás and Ster, András and Sziklai, János István and Tarján, Péter and Ujvári, Balázs and Vargyas, Márton and Vértesi, Róbert and Zimányi, József (2016) PHENIX Measurements of Single Electrons from Charm and Bottom Decays at Midrapidity in Au+Au Collisions. NUCLEAR PHYSICS A, 956. pp. 469-472. ISSN 0375-9474

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Abstract

Heavy quarks are an ideal probe of the quark gluon plasma created in heavy ion collisions. They are produced in the initial hard scattering and therefore experience the full evolution of the medium. PHENIX has previously measured the modification of heavy quark production in Au+Au collisions at √sNN = 200 GeV via electrons from semileptonic decays, which indicated substantial modifications of the parent hadron momentum distribution. The PHENIX barrel silicon vertex detector (VTX), installed in 2011, allows for the separation of electrons from charm and bottom hadron decays through the use of displaced vertex measurements. These proceedings present the results of the completed analysis of the 2011 data set using the VTX.

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