Heavy Hadron Weak Decay Form Factors to Next-to-Leading Order in 1/m

Abstract

Based on the short-distance expansion of currents in the heavy quark effective theory, we derive the exact expressions for the heavy-to-heavy meson and baryon weak decay form factors to order $1/m_Q$ in the heavy quark expansion, and to all orders in perturbation theory. We emphasize that the Wilson coefficients in this expansion depend on a kinematic variable $\bar{w}$ that is different from the velocity transfer $w=v\cdot v^{\prime }$ of the hadrons. Our results generalize existing ones obtained in the leading-logarithmic approximation. Some phenomenological applications are briefly discussed.

17 pages LaTeX, SLAC-PUB-6258

References in corpus (5)

• Reparameterisation Invariance Constraints on Heavy Particle Effective Field Theories
• The Residual Mass Term in the Heavy Quark Effective Theory
• QCD Sum Rule Analysis of the Subleading Isgur-Wise Form Factor ${\chi }_2(v\cdot v^{\prime })$
• Reparametrization invariance and the expansion of currents in the heavy quark effective theory
• Heavy Hadron Form Factor Relations for $m_c\ne \infty$ and $\bas(m_c)\ne0$

Cited by in corpus (9)

• Heavy Quark Symmetry
• Semileptonic B decays to excited charmed mesons
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• Polarizations in B -> VV decays
• Cancellation of Renormalon Ambiguities in the Heavy Quark Effective Theory
• Universal ${\tau }_{1/2}(y)$ Isgur-Wise Function at the Next-to-Leading Order in QCD Sum Rules
• Combined nonrelativistic constituent quark model and heavy quark effective theory study of semileptonic decays of Λ_b and Ξ_b baryons
• Exclusive semileptonic B decays to radially excited D mesons
• Renormalization of Velocity-Changing Dimension-Five Operators in the Heavy-Quark Effective Theory