Sudakov suppression in the soft heavy to light meson transition form factor

Abstract

We calculate hard gluon contribution to the decay vertex that determines the heavy-to-light meson transition form factor at large recoil. It is found that resulting Sudakov suppression significantly decreases the soft, wave function dependent contribution to the form factor. Phenomenological implications of these findings are discussed.

10 pages, latex, 1 figure in epsf style

References in corpus (3)

• Radiative Corrections to the Decay $B\to \pi e\nu$ and the Heavy Quark Limit
• Perturbative QCD Correction to the $B\to \pi$ Transition Form Factor
• Consistent Analysis of O(α_s) Corrections to Pion Elastic Form Factor

Cited by in corpus (3)

• QCD Factorization in B -> pi K, pi pi Decays and Extraction of Wolfenstein Parameters
• Leading-power contributions to $B\to \pi ,\rho$ transition form factors
• Perturbative QCD analysis of $B\to \varphi K$ decays and Power counting