Regularization dependence of running couplings in softly broken supersymmetry

1993/08/31 by Stephen P. Martin, Michael T. Vaughn · 4 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/0370-2693(93)90136-6

published as Phys.Lett. B318 (1993) 331-337 · 11 pages. v2: Signs of equations (1.2) and (4.2) are fixed

openalex publication_date 1993/12/01 · arxiv created 2008/07/24 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We discuss the dependence of running couplings on the choice of regularization method in a general softly-broken N=1 supersymmetric theory. Regularization by dimensional reduction respects supersymmetry, but standard dimensional regularization does not. We find expressions for the differences between running couplings in the modified minimal subtraction schemes of these two regularization methods, to one loop order. We also find the two-loop renormalization group equations for gaugino masses in both schemes, and discuss the application of these results to the Minimal Supersymmetric Standard Model.

Cited by

• The complete radiative corrections to the gaugino and Higgsino masses in the minimal supersymmetric model
• A renormalizable supersymmetric SU(5) model
• On N = 2 supersymmetric QCD with four flavors
• Constraints on Finite Soft Supersymmetry-Breaking Terms