Orateur
Martin Gorbahn
(University of Liverpool)
Description
Flavour changing rare decays provide important tools to test the standard model and
constrain the parameter space of physics beyond the standard model.
The decay of a B_s or B_s meson into two charged leptons has a unique sensitivity to new physics and can be calculated with high precision in the standard model. I will discuss the recently calculated two-loop electroweak corrections to this decay and show how the previously large electroweak scheme ambiguities are rendered negligible at this order.
Author
Martin Gorbahn
(University of Liverpool)
