Phenomenological Bounds on B to Light Semileptonic Form Factors
Abstract
The form factors for the weak currents between B and light mesons are studied by relating them to the corresponding D form factors at q2max according to HQET, by evaluating them at q2=0 by QCD sum rules, and by assuming a polar q2 dependence. The results found are consistent with the information obtained from exclusive non-leptonic two-body decays and, with the only exception of A1, with lattice calculations.
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