Heavy-to-Light Meson Transitions in QCD

Details Heavy-to-Light Meson Transitions in QCD Heavy-to-Light Meson Transitions in QCD

1995-08-02

arxiv.org/abs/hep-ph/9508216v1

Nuovo Cim.A109:807-814,1996

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTex, 7 pages, 2 figures (files included). Talk given at the 6th International Symposium on Heavy Flavours, Pisa, 6-10 June 1

Scientific paper

10.1007/BF02731713

I discuss QCD sum rules determinations of the form factors governing the decay $B \to \pi (\rho) \ell \nu$. For some of these form factors the computed dependence on the momentum transferred does not agree with the expectation from the nearest pole dominance hypothesis. Relations are observed among the form factors, that seem to be compatible with equations recently derived by B.Stech. The measurement of a number of color suppressed nonleptonic B decay rates could shed light on the accuracy of the calculation of these form factors and on the factorization approximation.

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