Renormalization of the axial current operator in dimensional regularization at four-loop in QCD
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DOI: 10.1007/jhep01(2022)187
Abstract: We provide the renormalization constants of the axial current operators, both singlet and non-singlet, in dimensional regularization up to four-loop order in (QCD), determined using the off-shell Ward-Takahashi identity for an axial current with a… read more here.
Keywords: current operator; four loop; axial current; regularization four ... See more keywords