Skip to main content

Research Repository

Advanced Search

Simplified dark matter models with two Higgs doublets: I. Pseudoscalar mediators

Bauer, Martin; Haisch, Ulrich; Kahlhoefer, Felix

Simplified dark matter models with two Higgs doublets: I. Pseudoscalar mediators Thumbnail


Authors

Ulrich Haisch

Felix Kahlhoefer



Abstract

We study a new class of renormalisable simplified models for dark matter searches at the LHC that are based on two Higgs doublet models with an additional pseudoscalar mediator. In contrast to the spin-0 simplified models employed in analyses of Run I data these models are self-consistent, unitary and bounds from Higgs physics typically pose no constraints. Predictions for various missing transverse energy (E T,miss) searches are discussed and the reach of the 13 TeV LHC is explored. It is found that the proposed models provide a rich spectrum of complementary observables that lead to non-trivial constraints. We emphasise in this context the sensitivity of the tt¯+ET,miss, mono-Z and mono-Higgs channels, which yield stronger limits than mono-jet searches in large parts of the parameter space. Constraints from spin-0 resonance searches, electroweak precision measurements and flavour observables are also derived and shown to provide further important handles to constraint and to test the considered dark matter models.

Citation

Bauer, M., Haisch, U., & Kahlhoefer, F. (2017). Simplified dark matter models with two Higgs doublets: I. Pseudoscalar mediators. Journal of High Energy Physics, 2017(05), Article 138. https://doi.org/10.1007/jhep05%282017%29138

Journal Article Type Article
Acceptance Date May 14, 2017
Online Publication Date May 25, 2017
Publication Date May 31, 2017
Deposit Date Nov 27, 2018
Publicly Available Date Mar 28, 2024
Journal Journal of High Energy Physics
Print ISSN 1126-6708
Publisher Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed Peer Reviewed
Volume 2017
Issue 05
Article Number 138
DOI https://doi.org/10.1007/jhep05%282017%29138

Files

Published Journal Article (1.7 Mb)
PDF

Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.





You might also like



Downloadable Citations