Renormalization of the axial current operator in dimensional regularization at four-loop in QCD
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 non-anticommuting γ 5. A possible applicati...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-01-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP01(2022)187 |
| _version_ | 1798022606449803264 |
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| author | Long Chen Michał Czakon |
| author_facet | Long Chen Michał Czakon |
| author_sort | Long Chen |
| collection | DOAJ |
| description | 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 non-anticommuting γ 5. A possible application of the result for the singlet axial current operator is the extraction of the non-decoupling mass logarithms in the axial quark form factors. |
| first_indexed | 2024-04-11T17:32:41Z |
| format | Article |
| id | doaj.art-ccc6644396d14daba812e1a19a1ef701 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-04-11T17:32:41Z |
| publishDate | 2022-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-ccc6644396d14daba812e1a19a1ef7012022-12-22T04:11:58ZengSpringerOpenJournal of High Energy Physics1029-84792022-01-012022111710.1007/JHEP01(2022)187Renormalization of the axial current operator in dimensional regularization at four-loop in QCDLong Chen0Michał Czakon1Institut für Theoretische Teilchenphysik und Kosmologie, RWTH Aachen UniversityInstitut für Theoretische Teilchenphysik und Kosmologie, RWTH Aachen UniversityAbstract 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 non-anticommuting γ 5. A possible application of the result for the singlet axial current operator is the extraction of the non-decoupling mass logarithms in the axial quark form factors.https://doi.org/10.1007/JHEP01(2022)187NLO ComputationsQCD Phenomenology |
| spellingShingle | Long Chen Michał Czakon Renormalization of the axial current operator in dimensional regularization at four-loop in QCD Journal of High Energy Physics NLO Computations QCD Phenomenology |
| title | Renormalization of the axial current operator in dimensional regularization at four-loop in QCD |
| title_full | Renormalization of the axial current operator in dimensional regularization at four-loop in QCD |
| title_fullStr | Renormalization of the axial current operator in dimensional regularization at four-loop in QCD |
| title_full_unstemmed | Renormalization of the axial current operator in dimensional regularization at four-loop in QCD |
| title_short | Renormalization of the axial current operator in dimensional regularization at four-loop in QCD |
| title_sort | renormalization of the axial current operator in dimensional regularization at four loop in qcd |
| topic | NLO Computations QCD Phenomenology |
| url | https://doi.org/10.1007/JHEP01(2022)187 |
| work_keys_str_mv | AT longchen renormalizationoftheaxialcurrentoperatorindimensionalregularizationatfourloopinqcd AT michałczakon renormalizationoftheaxialcurrentoperatorindimensionalregularizationatfourloopinqcd |