Evading Direct Dark Matter Detection in Higgs Portal Models
High Energy Physics - Phenomenology
2017-04-28 v1
Abstract
Many models of Higgs portal Dark Matter (DM) find themselves under pressure from increasingly tight direct detection constraints. In the framework of gauge field DM, we study how such bounds can be relaxed while retaining the thermal WIMP paradigm. When the hidden sector gauge symmetry is broken via the Higgs mechanism, the hidden sector generally contains unstable states which are lighter than dark matter. These states provide DM with an efficient annihilation channel. As a result, the DM relic abundance and the direct detection limits are controlled by different parameters, and the two can easily be reconciled. This simple setup realizes the idea of `secluded' dark matter naturally.
Cite
@article{arxiv.1611.09675,
title = {Evading Direct Dark Matter Detection in Higgs Portal Models},
author = {Giorgio Arcadi and Christian Gross and Oleg Lebedev and Stefan Pokorski and Takashi Toma},
journal= {arXiv preprint arXiv:1611.09675},
year = {2017}
}
Comments
9 pages