Renormalization of Flavor Singlet and Nonsinglet Fermion Bilinear Operators

2); (2) Present address: Department of Physics; H. Panagopoulos (1) ((1) Department of Physics; M. Constantinou (1); M. Hadjiantonis (1; University of Cyprus; University of Michigan)

arxiv: 1411.6990 · v1 · pith:IJ543MJ7new · submitted 2014-11-25 · ✦ hep-lat

Renormalization of Flavor Singlet and Nonsinglet Fermion Bilinear Operators

M. Constantinou (1) , M. Hadjiantonis (1 , 2) , H. Panagopoulos (1) ((1) Department of Physics , University of Cyprus , (2) Present address: Department of Physics , University of Michigan) This is my paper

classification ✦ hep-lat

keywords actionsbilinearfermionflavornonsingletoperatorsrenormalizationresults

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We compute the difference in the renormalization of flavor singlet and nonsinglet fermion bilinear operators, to two loops in perturbation theory. Our results are applicable to a rather wide class of lattice actions with Symanzik improved gluons, stout links and clover fermions, including the Twisted Mass and SLiNC actions. A more detailed presentation of our results, along with relevant references, will appear in a forthcoming publication.

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Renormalization of Flavor Singlet and Nonsinglet Fermion Bilinear Operators

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