Three-loop OPE Wilson coefficients of dimension-four operators for (axial-)vector and (pseudo-)scalar current correlators
- Autor(en)
- Robin Brüser, André H. Hoang, Maximilian Stahlhofen
- Abstrakt
We calculate the three-loop Wilson coefficients of all physically relevant dimension-four operators, i.e. GμνaGa,μν, miq¯jqj and mimjmk2, in the short-distance expansion of the time-ordered product of a pair of gauge-singlet vector, axial-vector, scalar and pseudo-scalar currents. The results are given for a general non-Abelian gauge theory with arbitrary (compact semi-simple) gauge group and nf light fermion flavors (quarks) in a common arbitrary representation of the gauge group, which includes QCD as a special case. In particular, we allow for arbitrary flavor contents of each of the currents. For the axial-vector current the included contributions from so-called singlet diagrams are consistent with the one-loop axial anomaly.
- Organisation(en)
- Teilchenphysik
- Externe Organisation(en)
- Albert-Ludwigs-Universität Freiburg
- Journal
- Journal of High Energy Physics
- Band
- 2024
- Anzahl der Seiten
- 34
- ISSN
- 1029-8479
- DOI
- https://doi.org/10.48550/arXiv.2408.03989
- Publikationsdatum
- 12-2024
- Peer-reviewed
- Ja
- ÖFOS 2012
- 103012 Hochenergiephysik
- Schlagwörter
- ASJC Scopus Sachgebiete
- Nuclear and High Energy Physics
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/cdcc6e52-9a0b-4129-94de-24a5e6f1b767