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Paper detail

Exclusive Charmless $B$ Decays in QCD

The problem of hadronic input in charmless nonleptonic B decays is discussed. QCD sum rules and their light-cone versions (LCSR) provide an important part of this input, such as the decay constant $f_B$ and $B\to π$ form factor. Employing the LCSR technique, the $B\to ππ$ hadronic matrix elements with emission, penguin and annihilation topologies are calculated, with no evidence for large nonfactorizable effects and/or strong phases.

preprint2006arXivOpen access
Alexander Khodjamirian
hep-ph
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Alexander Khodjamirian

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