Séminaire: (LHCb) Time dependent CP violation measurements at hadron colliders

par Dr Vladimir GLIGOROV

vendredi 18 févr. 2011, 14:30 → 15:30 Europe/Paris

Salle 9110 (Dept Phys.)

The startup of the LHC opens many new frontiers in precision flavour physics, in particular expanding the field of precision time-dependent CP violation measurements to the Bs system, as well as allowing precise time dependent CP violation measurements in two body charm decays. Both of these are critical ingredients of any model independent New Physics search, and hold the possibility of an unambiguous discovery of physics beyond the Standard Model. In order to fully exploit the LHC's statistical reach, however, it will be necessary to achieve an excellent control of the backgrounds and systematic effects associated with performing these measurements at a hadron collider, particularly in the presence of multiple overlapping proton-proton interactions. This seminar will discuss the status of the time-dependent CP violation measurements in both Bs and D0 decays at LHCb, the LHC's dedicated heavy flavour experiment. A particular focus of the talk will be the design of efficient triggers for these decay modes in the environment of the LHC, and the procedures for a data driven evaluation of the associated trigger biases which is critical to reducing the systematic error on the CP violation measurements themselves.