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Matching Perturbative and Non-Perturbative Physics With Power Accuracy in Heavy-Quark Effective Theory

Xiangdong Ji
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Abstract

I discuss a scheme to match perturbative and non-perturbative physics with power accuracy in the heavy-quark effective theory. I elaborate on two important aspects of the scheme: 1) a multi-loop subtraction of soft contributions from the perturbation series in the pole mass, 2) a perturbative regularization of the linearly-divergent heavy-quark self-energy in the lattice formulation of the heavy-quark effective theory.

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Xiangdong Ji. 1995-07-17. Matching Perturbative and Non-Perturbative Physics With Power Accuracy in Heavy-Quark Effective Theory. https://arxiv.org/abs/hep-ph/9507322

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