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Renormalization of three-quark operators at two loops in the RI{}'/SMOM scheme
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Renormalization of three-quark operators at two loops in the RI{}'/SMOM scheme
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We consider the renormalization of the three-quark operators without derivatives at next-to-next-to-leading order in QCD perturbation theory at the symmetric subtraction point. This allows us to obtain conversion factors between the $\bar{\rm MS}$ scheme and the regularization invariant symmetric MOM (RI/SMOM, RI${}'$/SMOM) schemes. The results are presented both analytically in $R_\xi$ gauge in terms of a set of master integrals and numerically in Landau gauge. They can be used to reduce the errors in determinations of baryonic distribution amplitudes in lattice QCD simulations.
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Cited by 1 Pith paper
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RI/SMOM renormalization for lattice QCD: bilinear and three-quark operators
A review of high-order RI'/SMOM-to-MS matching factors for lattice QCD bilinear and three-quark operators, including unpublished N=1 results.
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