Martin Jung - "Standard Model predictions and new physics in semileptonic b->c transitions"

by Martin Jung

Aula C (Via della Vasca Navale 84)

Aula C

Via della Vasca Navale 84


Semileptonic b->c transitions are important because they provide both precision observables for the
determination of the CKM matrix element Vcb and probes for new physics. The latter is particularly
true for the channel with a tau lepton in the final state, where a tension with the SM of 3-4 standard
deviations has been present for a long time, but also for the light-lepton modes. The increasing
experimental precision in these modes requires an improved theoretical treatment, in order to realize
its full potential in terms of precision for the extracted parameters and the new-physics reach. I will
review the state-of-the-art treatment of these modes and discuss the status of potential new-physics