English

Gauge coupling beta functions to four-loop order in the Standard Model

High Energy Physics - Phenomenology 2020-02-26 v1

Abstract

We compute the beta functions of the three Standard Model gauge couplings to four-loop order in the modified minimal subtraction scheme. At this order a proper definition of γ5\gamma_5 in D=42ϵD=4-2\epsilon space-time dimensions is required; however, in our calculation we determine the γ5\gamma_5-dependent terms by exploiting relations with beta function coefficients at lower loop orders.

Cite

@article{arxiv.1912.07624,
  title  = {Gauge coupling beta functions to four-loop order in the Standard Model},
  author = {Joshua Davies and Florian Herren and Colin Poole and Matthias Steinhauser and Anders Eller Thomsen},
  journal= {arXiv preprint arXiv:1912.07624},
  year   = {2020}
}

Comments

6 pages, 2 figures

R2 v1 2026-06-23T12:47:36.867Z