Heavy Flavours in Photoproduction at HERA

Abstract

Differential cross sections, $d\sigma /d{x}_{\gamma }^{\mathrm{OBS}}$, for dijet photoproduction events with a tagged $D^{\ast }$ meson are presented, where $x_{\gamma }^{\mathrm{OBS}}$ is the fraction of the photon energy contributing to the two highest transverse energy jets. Results on open beauty cross sections (from semileptonic decays) compared to LO Monte Carlo predictions are also presented.

4 pages, 3 figures to appear in the proceedings of the XXXIVth Rencontres de Moriond