The quasi-infra-red fixed point at higher loops

1996/10/31 by P. M. Ferreira, I. Jack, D.R.T. Jones +1 · 3 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/s0370-2693(96)01549-3

published as Phys.Lett. B392 (1997) 376-382 · 12 pages, including 3 figures. Version as published in Phys. Lett. B, but with minor errors corrected, particularly f(T)-->f(0). Plain TeX. Uses Harvmac and epsf

openalex publication_date 1997/01/01 · arxiv created 1999/06/29 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We calculate the four-loop β-function for the generalised Wess-Zumino model. We use the result and Padé-Borel summation to discuss the domain of attraction of the quasi-infra-red fixed point of the top-quark Yukawa coupling in the supersymmetric standard model, and argue that the domain is in fact substantial.

Citations

• The three-loop SSM β-functions
• N = 1 supersymmetry and the three-loop gauge β-function
• Infra-red fixed points revisited

Cited by

• Constraints on RG flow for four dimensional quantum field theories
• The a-function for gauge theories
• Five loop renormalization of the Wess-Zumino model