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arXiv · hep-ph/9905412

NLL Corrections for B-Meson Radiative Exclusive Decays

H. H. Asatryan·H. M. Asatrian·D. Wyler
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Abstract

We calculate the next-to-leading corrections to the branching ratio of exclusive $B\to K^* γ$ decay. The renormalization scale dependence is reduced compared to the leading logarithmic result but there remains a dependence on a cutoff parameter of the hadronic model. The calculated corrections increase the predicted branching ratio by about 10%, but it remains in agreement with the experimental value.

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H. H. Asatryan, H. M. Asatrian, D. Wyler. 1999-05-20. NLL Corrections for B-Meson Radiative Exclusive Decays. https://doi.org/10.1016/s0370-2693(99)01304-0

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