Non-perturbative renormalization in coordinate space for \(N_f=2\) maximally twisted mass fermions with tree-level Symanzik improved gauge action
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Publication:1950090
DOI10.1016/J.NUCLPHYSB.2012.08.006zbMATH Open1262.81192arXiv1207.0628OpenAlexW2000505960MaRDI QIDQ1950090
Author name not available (Why is that?)
Publication date: 8 May 2013
Published in: (Search for Journal in Brave)
Abstract: We present results of a lattice QCD application of a coordinate space renormalization scheme for the extraction of renormalization constants for flavour non-singlet bilinear quark operators. The method consists in the analysis of the small-distance behaviour of correlation functions in Euclidean space and has several theoretical and practical advantages, in particular: it is gauge invariant, easy to implement and has relatively low computational cost. The values of renormalization constants in the X-space scheme can be converted to the MSbar scheme via 4-loop continuum perturbative formulae. Our results for maximally twisted mass fermions with tree-level Symanzik improved gauge action are compared to the ones from the RI-MOM scheme and show full agreement with this method.
Full work available at URL: https://arxiv.org/abs/1207.0628
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