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Bilinear quark operators in the RI/SMOM scheme at three loops

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Kniehl, Bernd A. ; Veretin, Oleg L.
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Date of publication of this fulltext: 01 Apr 2021 13:43


We consider the renormalization of the matrix elements of the bilinear quark operators ¯ψψ, ¯ ψγμψ, and ¯ ψσμνψat next-to-next-to-next-to-leading order in QCD perturbation theory at the symmetric subtraction point. This allows us to obtain conversion factors between the MSscheme and the regularization invariant symmetric momentum subtraction (RI/SMOM) scheme. The obtained results can be used to ...


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