One-loop Renormalization of Heavy-Light Currents

J Harada,S Hashimoto,KI Ishikawa,AS Kronfeld,T Onogi,N Yamada

arXiv: High Energy Physics - Lattice（2002）

Hiroshima Univ | High Energy Accelerator Reserch Organization (KEK) | University of Tsukuba Center for Computational Physics | Fermi National Accelerator Laboratory Theoretical Physics Department | Kyoto University Yukawa Institute for Theoritical Physics

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Abstract

We calculate the mass dependent renormalization factors of heavy-light bilinears at one-loop order of perturbation theory, when the heavy quark is treated with the Fermilab formalism. We present numerical results for the Wilson and Sheikholeslami-Wohlert actions, with and without tree-level rotation. We find that in both cases our results smoothly interpolate from the static limit to the massless limit. We also calculate the mass dependent Brodsky-Lepage-Mackenzie scale q^*, with and without tadpole-improvement.

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Key words

Nonlinear Optics,Slow Light,Optical Parametric Amplifiers

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