Heavy Meson Exclusive Decays in the Framework of QCD Sum Rules

Abstract

We discuss applications of QCD sum rules on the light-cone to the form factors of the exclusive transitions $B\to \pi$ and $D\to \pi$, and to the $B^{\ast }B\pi$ and $D^{\ast }D\pi$ coupling constants. In the light of our results we examine the pole dominance model for these form factors. A first estimate is given on the nonfactorizable amplitude of the decay $B\text{ra}J/\psi K$.

Comments: 11 pages, Latex, 3 figures added as uuencoded .ps file, presented by R. Rückl at the 138.WE-Heraeus-Seminar on Heavy Quark Physics, Bad Honnef, Germany, December 14-16,1994