Dynamical generation of the weak and Dark Matter scales from strong interactions

TL;DR

This paper proposes a model where strong interactions generate mass scales through dimensional transmutation, explaining electroweak symmetry breaking and Dark Matter candidates without introducing new parameters beyond the Standard Model.

Contribution

It introduces a minimal extension of the Standard Model with vector-like fermions and a new strong gauge interaction, predicting electroweak symmetry breaking and stable Dark Matter candidates.

Findings

Predicts electroweak symmetry breaking via strong dynamics

Identifies two stable Dark Matter candidates with relic abundance matching observations

Compatible with existing experimental bounds and predicts new physics at multi-TeV scales

Abstract

Assuming that mass scales arise in nature only via dimensional transmutation, we extend the dimension-less Standard Model by adding vector-like fermions charged under a new strong gauge interaction. Their non-perturbative dynamics generates a mass scale that is transmitted to the elementary Higgs boson by electro-weak gauge interactions. In its minimal version the model has the same number of parameters as the Standard Model, predicts that the electro-weak symmetry gets broken, predicts new-physics in the multi-TeV region and is compatible with all existing bounds, provides two Dark Matter candidates stable thanks to accidental symmetries: a composite scalar in the adjoint of SU(2)_L and a composite singlet fermion; their thermal relic abundance is predicted to be comparable to the measured cosmological DM abundance. Some models of this type allow for extra Yukawa couplings; DM candidates remain even if explicit masses are added.