PoS - Proceedings of Science
Volume 314 - The European Physical Society Conference on High Energy Physics (EPS-HEP2017) - Dark Matter (Parallel Session). Coveners: Enrique Araujo; Caterina Doglioni; Alfredo Urbano. Scientific Secretary: Caterina Braggio.
Saving the Higgs Portal for Singlet Scalar Dark Matter.
J. Quilis
Full text: pdf
Pre-published on: October 19, 2017
Published on: March 20, 2018
Abstract
The Higgs-portal model with a singlet scalar Dark Matter particle is one of the simplest extensions to the Standard Model that can reproduce the relic density. Unfortunately this model is strongly constrained by direct and indirect DM detection, as well as by collider physics. Most of the parameter space is already ruled-out and the rest will be explored in the next future. We show that a simple extension of the DM sector with a second scalar singlet enables a substantial opening of the allowed window in the parameter space.
DOI: https://doi.org/10.22323/1.314.0081
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