Benchmarking the Inert Doublet Model for e+ e- colliders

TL;DR

This paper establishes benchmark scenarios for the Inert Doublet Model, a Two Higgs Doublet Model with dark matter, ensuring compatibility with current experimental constraints and highlighting potential signals at future lepton colliders.

Contribution

It provides a set of benchmark points for the Inert Doublet Model that are consistent with existing constraints and suitable for probing at lepton colliders.

Findings

Benchmarks are consistent with XENON1T and relic density constraints.

Selected points predict detectable signals at lepton colliders.

Different kinematic features lead to varied collider signatures.

Abstract

We present benchmarks for the Inert Doublet Model, a Two Higgs Doublet Model with a dark matter candidate. They are consistent with current constraints on direct detection, including the most recent bounds from the XENON1T experiment and relic density of dark matter, as well as with known collider and low-energy limits. We focus on parameter choices that promise detectable signals at lepton colliders via pair-production of H+H- and HA. For these we choose a large variety of benchmark points with different kinematic features, leading to distinctly different final states in order to cover the large variety of collider signatures that can result from the model.