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Renormalization of three-quark operators at two loops in the RI${}'$/SMOM scheme
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abstract
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.
Forward citations
Cited by 3 Pith papers
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Updated determination of light-cone distribution amplitudes of octet baryons in lattice QCD
Updated baryon light-cone distribution amplitude moments are presented using two-loop conversion factors and new low-energy constants; the two-loop anomalous dimensions for one-derivative three-quark operators are com...
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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A review of high-order RI'/SMOM-to-MS matching factors for lattice QCD bilinear and three-quark operators, including unpublished N=1 results.
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Baryon Number Violation: From Nuclear Matrix Elements to BSM Physics
A workshop report that maps the current experimental and theoretical landscape for baryon number violation, from proton decay and neutron-antineutron oscillation searches to the EFT, lattice QCD, and astrophysical con...
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