Conveners
The potent power of the penguin: The potent power of the penguin
- Mark Smith (Imperial College London)
Description
Flavour changing neutral currents are suppressed in the Standard Model, making them a prime avenue to search for new physics. Over the past decade a consistent set of discrepancies between experimental measurements and theoretical expectations in b->smumu decays has emerged. The flagship b->smumu mode is the decay B0->K*mumu , where discrepancies have been observed in angular observables, such as P5' and in the differential branching fraction.
In this seminar, a new comprehensive analysis of the B0->K*mumu decay will be presented, made with 8.4fb^-1 of LHCb pp collision data collected in 2011-2012 and 2016-2018. Results will be shown for the angular observables of the decay, which for the first time will include considerations for the effect of the muon mass. Furthermore, the differential branching fraction in q2 will be presented, as well as the complete set of CP-asymmetry observables. Finally, this measurement accounts fully for the contributions of S-wave decays and their interference, from which the complete set of observables will be shown.
