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.

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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
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article

Structure of renormalization constants for theories with multiple couplings in the MS-like subtraction schemes

K. V. Stepanyantz, Nikolai Meshcheriakov, Victoria Shatalova, G.V. Kovyrshin
1 citations
Nuclear Physics B
Particle physics theoretical and experimental studies
1.87
article

Structure of renormalization constants for theories with multiple couplings in the MS-like subtraction schemes

K. V. Stepanyantz, Nikolai Meshcheriakov, Victoria Shatalova, G.V. Kovyrshin
article en
1 citations

Abstract

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.

Nuclear Physics BVol. 1022
Openalex Percentile: Top 10%
Particle physics theoretical and experimental studies
1.87
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