Sudakov suppression in the soft heavy to light meson transition form factor - art. no. 034017

Authors
Szczepaniak, AP Radyushkin, A
Citation
Ap. Szczepaniak et A. Radyushkin, Sudakov suppression in the soft heavy to light meson transition form factor - art. no. 034017, PHYS REV D, 5903(3), 1999, pp. 4017
Citations number
23
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
05562821 → ACNP
Volume
5903
Issue
3
Year of publication
1999
Database
ISI
SICI code
0556-2821(19990201)5903:3<4017:SSITSH>2.0.ZU;2-V
Abstract
We calculate the hard gluon contribution to the decay vertex that determine s the heavy-to-light meson transition form factor at large recoil. It is fo und that the resulting Sudakov suppression significantly decreases the soft , wave function dependent contribution to the form factor. The phenomenolog ical implications of these findings are discussed. [S0556-2821(99)04101-6].