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Volume 256 - 34th annual International Symposium on Lattice Field Theory (LATTICE2016) - Standard Model Parameters and Renormalization
A massive momentum-subtraction scheme
P.A. Boyle, L. Del Debbio, A. Khamseh*
*corresponding author
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Pre-published on: 2016-12-27 09:53:30
Published on: 2017-03-24 10:20:24
We introduce a new massive renormalization scheme, denoted mSMOM, as a modification of the existing RI/SMOM scheme. We use mSMOM for defining renormalized fermion bilinears in QCD at non-vanishing fermion mass. This scheme has properties similar to those of the mSMOM scheme, such as the use of non-exceptional symmetric momenta, while in contrast to SMOM, it defines the renormalized fields away from the chiral limit. Here we discuss some of the properties of mSMOM, and present non-perturbative arguments for deriving some renormalization constants. The results of a 1-loop calculation in dimensional regularization are briefly summarised to illustrate some properties of the scheme.
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