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We calculate hard gluon contribution to the decay vertex that determines theheavy-to-light meson transition form factor at large recoil. It is found thatresulting Sudakov suppression significantly decreases the soft, wave functiondependent contribution to the form factor. Phenomenological implications ofthese findings are discussed.Comment: 10 pages, latex, 1 figure in epsf styl

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