On Constraints for Heavy-Meson Form Factors

Details On Constraints for Heavy-Meson Form Factors On Constraints for Heavy-Meson Form Factors

1992-11-06

arxiv.org/abs/hep-ph/9211216v1

Phys.Lett. B299 (1993) 127-132

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pp.+ 1 postscript figure, harvmac, SSCL-PP-167, BROWN-HET-882

Scientific paper

10.1016/0370-2693(93)90893-M

We examine the recent work of de Rafael and Taron where model-independent bounds on the Isgur-Wise function are presented. We first argue that the bounds cannot hold in as much generality as implied. We show that the effects of resonances omitted in their discussion (such as heavy-heavy ``onium'' states below threshold) modify the bound. The resulting bound is much weaker but may be useful where the size of the additional contribution may be computed or estimated.

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