Speaker
Jakob Müller
Description
In this talk, we discuss the computation of form factors for decays of heavy into light quarks at third order in QCD for various currents. We describe the different steps of the calculation and use the results to compute the hard matching coefficients in Soft-Collinear Effective Theory for all currents. Further, we extract the hard function in $\bar B \to X_s \gamma$ to three loops and study the impact of three-loop QCD corrections on partial decay rates in charged-current semi-leptonic $\bar B \to X_u l \bar \nu$ decays.
Primary authors
Fabian Lange
Jakob Müller
Kay Schönwald
Matteo Fael
Matthias Steinhauser
Tobias Huber
