A fermionic portal to a non-abelian dark sector

TL;DR

This paper introduces a new class of renormalisable models where a vector boson serves as dark matter, connected to the Standard Model via a fermionic mediator without requiring a Higgs portal, with broad experimental implications.

Contribution

The paper proposes Fermion Portal Vector Dark Matter models linking a dark SU(2) sector to the Standard Model through a vector-like fermion mediator, expanding the landscape of dark matter theories.

Findings

A new renormalisable dark matter model class is introduced.

The models allow for various realizations depending on mediator properties.

Potential applications span collider and non-collider experiments.

Abstract

We introduce a new class of renormalisable models, consisting of a dark $SU(2)_D$ gauge sector connected to the Standard Model (SM) through a Vector-Like (VL) fermion mediator, not requiring a Higgs portal, in which a massive vector boson is the Dark Matter (DM) candidate. These models are labelled Fermion Portal Vector Dark Matter (FPVDM). Multiple realisations are possible, depending on the properties of the VL partner and of the scalar potential. One example is discussed in detail. FPVDM models have a large number of applications in collider and non-collider experiments, depending on the mediator sector.