====== TTP01-30 Counting contact terms in $B \to V \gamma$ decays ======
 
 
   <hidden TTP01-30  Counting contact terms in $B \to V \gamma$ decays > We clarify the origin and cancellation of contact terms in the weak 
 annihilation amplitudes contributing to $B\to V \gamma$. 
 It is demonstrated that the photon emission from the final-state quarks 
 vanishes in the chiral limit of massless quarks. The contact terms in 
 the QCD light-cone sum rule evaluation of the weak annihilation 
 amplitudes are also discussed.
 </hidden>
|**Alexander Khodjamirian and Daniel Wyler**  | 
|**      in a volume "From Integrable Models to Gauge Theories", in honor of Sergei Matinyan, edited by V. G. Gurzadyan and A. G. Sedrakian, World Scientific, Singapore, 2002 **  |
| {{preprints:2001:ttp01-30.pdf|PDF}} {{preprints:2001:ttp01-30.ps|PostScript}} [[http://arxiv.org/abs/hep-ph/0111249|arXiv]]   |
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