Structure of renormalization constants for theories with multiple couplings in the MS-like subtraction schemes
For theories with multiple couplings we construct simple expressions for the four-dimensional (or, in general, integer-dimensional) renormalization constants assuming that all divergences are logarithmical. These expressions allow relating all coefficients at ε-poles, logarithms, and (if exist) mixed terms to the coefficients of the renormalization group functions in any order of the perturbation theory for MS-like renormalization prescriptions. The result admits such a formulation in that ε-poles and ln Λ/μ enter on the same footing. For theories with two and three couplings we present explicit expressions for the pole/logarithm structure of renormalization constants in the lowest orders of the perturbation theory. They are verified by comparisons with the two-loop explicit calculation for N=1 SQCD+SQED and also with the previously known three-loop calculations for the φ4-theory with two couplings.
Authors
- K. V. Stepanyantz (ORCID: https://orcid.org/0000-0002-6350-472X)
- Nikolai Meshcheriakov (ORCID: https://orcid.org/0000-0002-7605-3729)
- Victoria Shatalova (ORCID: https://orcid.org/0000-0003-4376-7343)
- G.V. Kovyrshin
Publication Details
- Journal
- Nuclear Physics B
- Published
- 2025-12-18
- DOI
- https://doi.org/10.1016/j.nuclphysb.2025.117272
- Citations
- 1
- Primary Topic
- Particle physics theoretical and experimental studies
- Type
- article
- Field-Weighted Citation Impact
- 1.87