Oliver Buchmueller
Characterising dark matter searches at colliders and direct detection experiments: vector mediators
Buchmueller, Oliver; Dolan, Matthew J.; Malik, Sarah A.; McCabe, Christopher
Authors
Matthew J. Dolan
Sarah A. Malik
Christopher McCabe
Abstract
We introduce a Minimal Simplified Dark Matter (MSDM) framework to quantitatively characterise dark matter (DM) searches at the LHC. We study two MSDM models where the DM is a Dirac fermion which interacts with a vector and axial-vector mediator. The models are characterised by four parameters: m DM , M med , g DM and g q, the DM and mediator masses, and the mediator couplings to DM and quarks respectively. The MSDM models accurately capture the full event kinematics, and the dependence on all masses and couplings can be systematically studied. The interpretation of mono-jet searches in this framework can be used to establish an equal-footing comparison with direct detection experiments. For theories with a vector mediator, LHC mono-jet searches possess better sensitivity than direct detection searches for light DM masses (≲5 GeV). For axial-vector mediators, LHC and direct detection searches generally probe orthogonal directions in the parameter space. We explore the projected limits of these searches from the ultimate reach of the LHC and multi-ton xenon direct detection experiments, and find that the complementarity of the searches remains. Finally, we provide a comparison of limits in the MSDM and effective field theory (EFT) frameworks to highlight the deficiencies of the EFT framework, particularly when exploring the complementarity of mono-jet and direct detection searches.
Citation
Buchmueller, O., Dolan, M. J., Malik, S. A., & McCabe, C. (2015). Characterising dark matter searches at colliders and direct detection experiments: vector mediators. Journal of High Energy Physics, 2015(1), Article 37. https://doi.org/10.1007/jhep01%282015%29037
| Journal Article Type | Article |
|---|---|
| Acceptance Date | Dec 15, 2014 |
| Online Publication Date | Jan 9, 2015 |
| Publication Date | Jan 9, 2015 |
| Deposit Date | Apr 5, 2019 |
| Publicly Available Date | Apr 8, 2019 |
| Journal | Journal of High Energy Physics |
| Print ISSN | 1126-6708 |
| Electronic ISSN | 1029-8479 |
| Publisher | Scuola Internazionale Superiore di Studi Avanzati (SISSA) |
| Peer Reviewed | Peer Reviewed |
| Volume | 2015 |
| Issue | 1 |
| Article Number | 37 |
| DOI | https://doi.org/10.1007/jhep01%282015%29037 |
| Public URL | https://durham-repository.worktribe.com/output/1304475 |
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Copyright Statement
This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
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