Home
For authors
Submission status

Archive
Archive (English)
Current
   Volumes 93-112
   Volumes 113-121
      Volume 121
      Volume 120
      Volume 119
      Volume 118
      Volume 117
      Volume 116
      Volume 115
      Volume 114
      Volume 113
Search
VOLUME 121 (2025) | ISSUE 5 | PAGE 337
Exact relations between running of αs and α in \boldsymbol{{\cal N}=1} SQCD + SQED
DOI: 10.31857/S0370274X25030019
Abstract
In {\cal N}=1 supersymmetric QCD and QED theory we derive the (all-order) exact equations relating the renormalization group behaviour of the strong and electromagnetic couplings and prove that they are valid in the combined higher covariant derivative regularized and minimal subtraction of logarithms renormalized prescription. In particular, the β-function of {\cal N}=1 supersymmetric QCD can be expressed in terms of the Adler D-function. If all flavors have the same absolute value of the electromagnetic charges, it is also possible to write a simple relation between the β-functions for the strong and electromagnetic coupling constants. In this particular case there is a special renormalization group invariant relation.