Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1993-10-08
Physics
High Energy Physics
High Energy Physics - Phenomenology
Latex, 12 pages, 2 figures (PostScript files included), BARI-TH/93-152. Talk delivered at the 3rd Workshop on a Tau-Charm Fact
Scientific paper
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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