Lattice-Constrained Parametrizations of Form Factors for Semileptonic and Rare Radiative B Decays

Abstract

We describe the form factors for semileptonic B to rho l nu and radiative B to K* gamma decays with just two parameters and the two form factors for semileptonic B to pi l nu decays with three parameters. The parametrizations are constrained by lattice results and are consistent with heavy quark symmetry, kinematic constraints and light cone sum rule scaling relations.

3 pages, latex, 2 eps files, uses epsf.sty and espcrc2.sty, poster presented at Lattice 97, Edinburgh, 22-26 July 1997

References in corpus (2)

• Use and Misuse of QCD Sum Rules in Heavy-to-light Transitions: the Decay $B\to \rho e\nu$ Reexamined
• The Three Dimensional Thirring Model for Small N_f

Cited by in corpus (5)

• Semileptonic Form-factors from B-> K* gamma Decays in the Large Energy Limit
• Heavy + heavy and heavy + light pseudoscalar to vector semileptonic transitions
• Perturbative approach to the penguin-induced $B\to \pi \varphi$
• The $B\to \rho$ helicity form factors within the QCD light-cone sum rules
• $D\to P(\pi ,K)$ helicity form factors within light-cone sum rule approach