Cold Nuclear Matter Effects and Heavy Quark Production in PHENIX

The PHENIX experiment uses semileptonic and leptonic decay channels, respectively, to measure open and closed heavy flavor cross sections across the rapidity range −2.2<y<2.4. High luminosity data are now available for p + p, d + Au, Cu + Cu and Au + Au collisions at √(SNN)=200GeV, and for Au + Au collisions at √(SNN)=62GeV. We discuss recent d + Au results for open heavy flavor and J/ψ production, and discuss their implications for the cold nuclear matter contributions to heavy flavor production in heavy ion collisions