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arXiv · hep-ph/9911530

QCD sum rules on the light cone and B -> pi form factors

Stefan Weinzierl·Oleg Yakovlev
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Abstract

The semileptonic decay B -> pi l nu is one of the most important reactions for the determination of the CKM matrix element |V_{ub}|. However, in order to extract |V_{ub}| from data one needs an accurate theoretical calculation of the hadronic matrix element describing the B to pi transition. QCD sum rules, based on operator-product expansion on the light-cone, provide a reliable approach to this aim. QCD corrections and higher twist contributions can be taken systematically into account.

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Stefan Weinzierl, Oleg Yakovlev. 1999-12-02. QCD sum rules on the light cone and B -> pi form factors. https://doi.org/10.1088/0954-3899%2F26%2F5%2F338

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