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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.
License: Creative Commons Attribution 4.0
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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 (psi) over bar psi, (psi) over bar gamma(mu)psi, and (psi) over bar sigma(mu nu)psi at 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 (MS) over bar scheme and the regularization invariant symmetric ...


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