Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-10-15
Physics
High Energy Physics
High Energy Physics - Phenomenology
6 pages, LaTex, 2 figures, epsf; talk presented by A. Khodjamirian at 28th International Conference on High Energy Physics, Wa
Scientific paper
We review QCD sum rule applications to hadronic matrix elements of exclusive $B$ and $D$ decays. Results are presented for the form factors $f^+$ and $F_0$ of $B \rightarrow \pi$ and $D\rightarrow \pi$ transitions. The predictions are used to compute the width of $D^* \rightarrow D \pi$, and to extract the CKM parameter $V_{ub}$ from the measured $B \rightarrow \pi e \nu$ width. Furthermore, we comment on weak annihilation in $B \rightarrow \rho \gamma$, as well as on the radiative decays $D \rightarrow \rho \gamma$, $D \rightarrow K^* \gamma$, and $B \rightarrow \mu \nu \gamma$.
Khodjamirian Alexander
Rückl Reinhold
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