Factorization and Sudakov Resummation in Leptonic Radiative $B$ Decay -- A Reappraisal

Anne Mareike Galda, Matthias Neubert, Xing Wang

The $B$-meson light-cone distribution amplitude is an important non-perturbative quantity arising in the factorization of the amplitudes for many exclusive decays of $B$ mesons, su…