Renormalization of three-quark operators at two loops in the RI${}'$/SMOM scheme
| Autor: | Kniehl, Bernd, Veretin, Oleg L. |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Landau gauge
Nuclear and High Energy Physics High Energy Physics::Lattice High Energy Physics::Phenomenology High Energy Physics - Lattice (hep-lat) lattice field theory FOS: Physical sciences regularization invariance quantum chromodynamics perturbation theory renormalization higher-order 2 distribution amplitude High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) High Energy Physics - Lattice ddc:530 master integral |
| Zdroj: | Nuclear physics / B 992, 116210 (2023). doi:10.1016/j.nuclphysb.2023.116210 Nuclear Physics |
| DOI: | 10.1016/j.nuclphysb.2023.116210 |
| Popis: | Nuclear physics / B 992, 116210 (2023). doi:10.1016/j.nuclphysb.2023.116210 We consider the renormalization of the three-quark operators withoutderivatives at next-to-next-to-leading order in QCD perturbation theory at thesymmetric subtraction point.This allows us to obtain conversion factors between the $\overline{\rm MS}$scheme and the regularization invariant symmetric MOM (RI/SMOM, RI${}'$/SMOM)schemes.The results are presented in $R_\xi$ gauge, both analytically in terms of a setof master integrals and in numerical form.They can be used to reduce the errors in determinations of baryonic light-conedistributions amplitudes in lattice QCD simulations. Published by North-Holland Publ. Co., Amsterdam |
| Databáze: | OpenAIRE |
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