$B\to \rho \ell {\nu }_{\ell }$ Form Factors

Abstract

The bounds on the form factors for $B\to \rho \ell {\nu }_{\ell }$ decay are studied. Constrained by lattice data and a constrained conformal mapping, the more informations can be obtained for $A_1(q^2)$ form-factor which dominates the decay rate at large $q^2$. Specifically, we confirm a moderately increasing behavior of this form factor.

15 pages, Latex, 4 figures

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Cited by in corpus (3)

• Precision Corrections to Dispersive Bounds on Form Factors
• Use and Misuse of QCD Sum Rules in Heavy-to-light Transitions: the Decay $B\to \rho e\nu$ Reexamined
• Heavy quark expansion and universal form factors in quark model