Form Factor Relations for Heavy-to-Light Transitions

Details Form Factor Relations for Heavy-to-Light Transitions Form Factor Relations for Heavy-to-Light Transitions

1995-02-23

arxiv.org/abs/hep-ph/9502378v2

Phys.Lett.B354:447-452,1995

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, Latex; Relativistic covariant form, results unchanged, references added, to be published in Physics Lett. B

Scientific paper

10.1016/0370-2693(95)00661-4

Assuming simple properties of the spectator particle in weak decays the form factors of hadronic current matrix elements are shown to be related to a single universal function. The Isgur-Wise result for heavy-to-heavy transitions follows as well as similar relations for heavy-to-light decay processes. The approximation should hold for total energies of the final particle large compared to the confinement scale. A comparison with experimentally determined D-decay form factors and QCD sum rule results for B-decays is very encouraging.

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