PS02 Rare Decays
Factorization and Sudakov Resummation in B→γ l ν
Newman Laboratory for Elementary-Particle Physics, Cornell University, Ithaca, NY 14853, U.S.A.
Accepted: 25 August 2003
Published online: 11 September 2003
We apply Soft-Collinear Effective Theory to prove at leading power in Λ QCD/m b a factorization formula for the radiative leptonic decay B→γ l ν. Large logarithms entering the hard-scattering kernel are systematically resummed by a two-step perturbative matching procedure.
PACS: PACS-keydiscribing text of that key – PACS-keydiscribing text of that key
© Società Italiana di Fisica, Springer-Verlag, 2004