Comment on the heavy-->light form factors

Details Comment on the heavy-->light form factors Comment on the heavy-->light form factors

1999-04-29

arxiv.org/abs/hep-ph/9904490v2

Phys.Lett. B478 (2000) 417-423

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 2 Postscript figures (2 refs.added + a slight change in Fig.2)

Scientific paper

10.1016/S0370-2693(00)00290-2

We propose a simple parametrization for the form factors in heavy to light
decays which satisfies the heavy quark scaling laws and avoids introducing the
explicit "dipole" form. The illustration is provided on the set of lattice data
for B -> pi, semileptonic decay. The resulting shape of the form factor also
agrees with the QCD sum rule predictions.

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