No strong coupling regime in the fermion-Higgs sector of the standard model

TL;DR

This paper investigates the fermion-Higgs sector of the Standard Model, finding that the renormalized couplings are not very strong, which has implications for the model's behavior and potential new physics.

Contribution

It provides the first detailed analysis of the renormalized couplings in a two-doublet fermion-Higgs model, challenging assumptions about strong coupling regimes.

Findings

Renormalized quartic self-coupling $\\lambda_R$ is not very strong.

Renormalized Yukawa coupling $y_R$ is not very strong.

Results suggest weak coupling regime in the fermion-Higgs sector.

Abstract

We present results for the renormalized quartic self-coupling $\lm_R$ and the renormalized Yukawa coupling $y_R$ in a fermion-Higgs model with two SU(2) doublets, indicating that these couplings are not very strong.