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arXiv · hep-ph/0309330

The B-Meson Distribution Amplitude in QCD

V. M. Braun·D. Yu. Ivanov·G. P. Korchemsky
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Abstract

The B-meson distribution amplitude is calculated using QCD sum rules. In particular we obtain an estimate for the integral relevant to exclusive B-decays λ_B = 460 \pm 110 MeV at the scale 1 GeV. A simple QCD-motivated parametrization of the distribution amplitude is suggested.

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V. M. Braun, D. Yu. Ivanov, G. P. Korchemsky. 2003-09-29. The B-Meson Distribution Amplitude in QCD. https://doi.org/10.1103/physrevd.69.034014

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