Constraints on Semileptonic Form-factors from Dispersive Sum Rules

Details Constraints on Semileptonic Form-factors from Dispersive Sum Rules Constraints on Semileptonic Form-factors from Dispersive Sum Rules

1997-07-21

arxiv.org/abs/hep-ph/9707410v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 1 ps figure included. Uses sprocl.sty. Talk presented at the 2nd Conference on B Physics and CP Violation, Honolulu,

Scientific paper

I briefly discuss the derivation of dispersive sum rules constraining
semileptonic form-factors. I outline the use of these constraints in the
context of charmless semileptonic decays and suggest how, in combination with
other theoretical and experimental information, they may reduce the
uncertainties in the extraction of $V_{ub}$.

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