Contribution to Proceedings

The pixel detector of the Compact Muon Solenoid (CMS) experiment consists of three barrel layers and two endcap disks at each side of the barrel section. The detector was installed in summer 2008, commissioned with the readout chip internal pulse generator, and used in cosmic ray trigger data taking in a 3.8-T magnetic field. Despite the excellent detector performance some problems arose after installation. In about a year we went through a complete and important...

Charm and Beauty production were measured in deep inelastic scattering (DIS) with the ZEUS detector at HERA. Heavy quarks were reconstructed using their semi-leptonic decay into muons. The signal was separated from the background using lifetime information, the transverse momentum of the muon with respect to the axis of the associated jet and the missing transverse momentum parallel to the muon direction. Differential cross sections were measured and compared to next-to-leading order QCD predictions. The...