Speaker
Roman Zwicky
(University of Edinburgh)
Description
An NLO computation of the $B_{u,d,s}\to \gamma$ form factor in light-cone sum rules will be presented. I will compare aspects of the computation to more familiar $B_s\to \phi $ form factor computations and give a physical interpretation of the photon distribution amplitude. I will discuss the extraction of the inverse moment of the $B$-meson distribution amplitude but most likely not present a definite number yet.
