Speaker
Mr
Gilberto Tetlalmatzi-Xolocotzi
(IPPP Durham)
Description
The talk will provide a general overview of the physics associated with neutral B meson oscillations, in particular on how the study of the mixing observables allows to constrain the space available for new physics.
Special emphasis will be given to the decay rate difference $\Delta \Gamma_d$ of the $B_d$ sector. According to recent model independent studies of new tree-level contributions and/or a violation of the CKM unitarity this observable can be enhanced by a factor of up to 4 with respect to its Standard Model value without getting in contradiction with current experimental data.
The implications of this result in connection with the recent discrepancy for the like-sign dimuon asymmetry and possible new sources of CP violation will be discussed.
Author
Alexander Lenz
(TU Munich)
Co-authors
Ben Pecjak
(DESY)
Christoph Bobeth
(Technical University Munich)
Mr
Gilberto Tetlalmatzi-Xolocotzi
(IPPP Durham)
Ulrich Haisch
(Institut fur Theoretische Physik - Universitaet Zuerich)
