Heavy Hadron Form Factor Relations for $m_c\ne \infty$ and $\bas(m_c)\ne0$

Abstract

First order power corrections to current matrix elements between heavy meson or $Λ_\Q$ baryon states are shown to vanish at the zero recoil point to all orders in QCD. Five relations among the six form factors that parametrize the semileptonic decay ${\Lambda }_b\to {\Lambda }_{c}e\overline{\nu }$ are also demonstrated to exist to all orders in the strong coupling at order $1/\mQ$ . The $O(\bas(m_c)/m_c)$ form factor relations are displayed.

11 pages, 1 figure (included)

Cited by in corpus (7)

• Heavy Quark Symmetry
• Second Order Power Corrections in the Heavy Quark Effective Theory I. Formalism and Meson Form Factors
• Heavy Hadron Chiral Perturbation Theory
• On a precise calculation of (f_{B_s}/f_B) / (f_{D_s}/f_D) and its implications on the interpretation of B - \bar B mixing
• Combined nonrelativistic constituent quark model and heavy quark effective theory study of semileptonic decays of Λ_b and Ξ_b baryons
• Reparametrization invariance and the expansion of currents in the heavy quark effective theory
• Heavy Hadron Weak Decay Form Factors to Next-to-Leading Order in 1/m