Spectral Functions for Heavy-Light Currents and Form Factor Relations in Hqet

Abstract

We derive relations among form factors describing the current-induced transitions: (vacuum) $\to B,B^{\ast },B\pi ,B^{\ast }\pi ,B\rho$ and $B^{\ast }\rho$ using heavy quark symmetry. The results are compared to corresponding form factor relations following from identities between scalar and axial vector, and pseudoscalar and vector spectral functions in the heavy quark limit.

LaTeX, 7 pages, UCT-TP 188/92, MZ-TH/92-54

References in corpus (2)

• Two-loop renormalization of the effective field theory of a static quark
• Operator product expansion in static-quark effective field theory: large perturbative correction