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QCD Calculation of Heavy Meson Semileptonic Transitions

P. Colangelo
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Abstract

I review the QCD sum rules calculations of the form factors governing the semileptonic decays of charmed and beauty mesons. In particular, I discuss the predicted dependence of the various form factors on $q^2$ and how it can be obtained for the form factors of vector and axial currents. In some cases the $q^2$ dependence, computed by QCD sum rules, is different from the outcome of lattice QCD. A Tau-Charm factory could be an efficient tool to study this aspect of the charmed meson transitions.

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P. Colangelo. 1993-10-08. QCD Calculation of Heavy Meson Semileptonic Transitions. https://arxiv.org/abs/hep-ph/9310251

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