Non-perturbative renormalization of HQET and QCD
Rainer Sommer (DESY Zeuthen)
TL;DR
This paper reviews the importance of non-perturbative renormalization in QCD and HQET, discussing strategies, recent progress, and specific techniques like off-shell improvement and finite volume schemes.
Contribution
It introduces a comprehensive approach for non-perturbative renormalization in QCD and HQET, including novel ideas for HQET renormalization on the lattice.
Findings
Advances in finite volume scheme implementation
Emphasis on off-shell improvement in MOM-scheme
Proposal for non-perturbative HQET renormalization
Abstract
We discuss the necessity of non-perturbative renormalization in QCD and HQET and explain the general strategy for solving this problem. A few selected topics are discussed in some detail, namely the importance of off-shell improvement in the MOM-scheme on the lattice, recent progress in the implementation of finite volume schemes and then particular emphasis is put on the recent idea to carry out a non-perturbative renormalization of the Heavy Quark Effective Theory.
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