Constraints on Heavy Meson Form Factors Derived from QCD Analyticity, Unitarity and Heavy Quark Spin Symmetry
Abstract
Description
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.
8 pages, LaTeX, uses sprocl.sty; presented at the 19th annual MRST High-Energy Theory meeting, Syracuse, NY, 12-13 May 1997; updated bibliography
8 pages, LaTeX, uses sprocl.sty; presented at the 19th annual MRST High-Energy Theory meeting, Syracuse, NY, 12-13 May 1997; updated bibliography