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arXiv · hep-ph/0008255

Symmetry-breaking corrections to heavy-to-light B meson form factors at large recoil

M. Beneke·Th. Feldmann
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Abstract

Recently it has been shown that symmetries emerging in the heavy quark and large recoil energy limit impose various relations on form factors that parametrise the decay of B mesons into light mesons. These symmetries are broken by perturbative effects. In this paper we discuss the structure of heavy-to-light form factors including such effects and compute symmetry-breaking corrections to first order in the strong coupling. As an application of our results we consider the forward-backward asymmetry zero in the rare decay B -> V l^+ l^- and the possibility to constrain potential new physics contributions to the Wilson coefficient C_9.

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M. Beneke, Th. Feldmann. 2000-11-06. Symmetry-breaking corrections to heavy-to-light B meson form factors at large recoil. https://doi.org/10.1016/s0550-3213(00)00585-x

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