SIMP from a strong U(1) gauge theory with a monopole condensation

TL;DR

This paper proposes a novel strongly interacting massive particle (SIMP) dark matter model based on a U(1) gauge theory with monopole condensation, exploring its phenomenology and experimental signatures.

Contribution

It introduces a new SIMP model using a U(1) gauge theory with monopole condensation, eliminating the need for an extra singlet field and analyzing its experimental implications.

Findings

The monopole-based model can produce viable dark matter candidates.

Mixing of monopole radial component with the Higgs allows for detectable signals.

The model predicts signals for future collider and direct detection experiments.

Abstract

We provide a variant model of strongly interacting massive particle (SIMP), where composite dark matter comes from a strongly interacting U(1) theory. We first explain a non-Abelian version of the model with an additional singlet field, which is mixed with the Higgs field to maintain the kinetic equilibrium between the hidden and Standard Model (SM) sectors. The mixing leads to signals that would be detected by future collider experiments, direct DM detection experiments, and beam-dump experiments. Then we investigate a U(1) theory with a scalar monopole, where U(1) charged particles are confined by monopole condensation. In this model, the radial component of monopole can mix with the Higgs field, so that we do not need to introduce the additional singlet field.