Constraints on Heavy Meson Form Factors Derived from QCD Analyticity, Unitarity and Heavy Quark Spin Symmetry

Details Constraints on Heavy Meson Form Factors Derived from QCD Analyticity, Unitarity and Heavy Quark Spin Symmetry Constraints on Heavy Meson Form Factors Derived from QCD Analyticity, Unitarity and Heavy Quark Spin Symmetry

1997-10-17

arxiv.org/abs/hep-ph/9710393v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, LaTeX, uses sprocl.sty; presented at the 19th annual MRST High-Energy Theory meeting, Syracuse, NY, 12-13 May 1997; u

Scientific paper

Using the analytic properties of two-point functions in QCD, as well as
unitarity, bounds on the B meson form factor F(q^2) can be derived. Heavy quark
spin symmetry, correctly taken into account, is shown to improve these bounds
significantly.

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