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T: Fachverband Teilchenphysik

T 82: Flavor-Tagging, Jet-Kalibration

T 82.1: Talk

Thursday, March 28, 2019, 16:00–16:15, S09

Flavour tagging developments at LHCb — Alex Birnkraut, •Quentin Führing, and Kevin Heinicke — Experimentelle Physik 5, TU Dortmund

A crucial part of the LHCb physics programm is the indirect search for new physics. In this context, precision measurements of CP violation in neutral B mesons are performed. For such measurements the initial B flavour has to be known. At LHCb this is estimated by various algorithms in the so called flavour tagging.

The LHCb flavour tagging is challenged by the upcoming running conditions at LHC run III. As the mistag rate increases with a higher number of proton interactions per event, the flavour tagging performance is expected to decrease. One approach to preserve and to improve the flavour tagging performance is the development of new algorithms. In this talk the latest flavour tagging developments, like the development of the SSK^*0(892) flavour tagging algorithm, will be presented.