Speaker
Description
Measurements of CP violation and flavour oscillations of neutral $B$ mesons require the knowledge of the meson flavour at the production time.
Flavour tagging algorithms in the LHCb experiment, despite the challenging, harsh environment due to $pp$ collisions, allow to perform such measurements with very high precision.
Recent examples feature world-leading results in the determination of the CKM angle $2\beta_s$ and the weak phase difference $\phi_s$, as well as measurements of the CKM angle $\gamma$.
Flavour tagging algorithms exploit the correlations between the $B$ meson flavour and different features of the event, and rely on advanced multivariate analysis techniques.
The details of these algorithms are presented, together with their performances.
