Anomalous tWb couplings: Interplay of top and bottom physics

by Jure Drobnak (IJS Ljubljana)

Friday 27 Jan 2012, 14:00 → 15:00 Europe/Berlin

3344 (TUM Physikdepartment)

Since the LHC can be considered a true top quark factory, it will give us the opportunity to directly study the structure of tWb coupling with high precision. On the other hand, due to the imperative role that top quark plays as a virtual particle in B physics, we can expect the effects of anomalous tWb couplings to show up in B physics observables as well, leading to an interesting interplay of top and bottom physics. I will present how B-Bbar mixing and rare B decays provide indirect constraints on anomalous tWb couplings and compare them with the direct constraints obtained from helicity fractions of the W boson produced in top quark's main decay channel and from single top production to show that they are in a sense complementary.