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Constraints on mediator-based dark matter and scalar dark energy models using root s= 13 TeV pp collision data collected by the ATLAS detector

Aaboud, M; Aad, G; Abbott, B; Abbott, DC; Abdinov, O; Abud, AA; Abhayasinghe, DK; ... Zwalinski, L; + view all (2019) Constraints on mediator-based dark matter and scalar dark energy models using root s= 13 TeV pp collision data collected by the ATLAS detector. Journal of High Energy Physics , 2019 , Article 142. 10.1007/JHEP05(2019)142. Green open access

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Abstract

Constraints on selected mediator-based dark matter models and a scalar dark energy model using up to 37 fb−1 s√ = 13 TeV pp collision data collected by the ATLAS detector at the LHC during 2015-2016 are summarised in this paper. The results of experimental searches in a variety of final states are interpreted in terms of a set of spin-1 and spin-0 single-mediator dark matter simplified models and a second set of models involving an extended Higgs sector plus an additional vector or pseudo-scalar mediator. The searches considered in this paper constrain spin-1 leptophobic and leptophilic mediators, spin-0 colour-neutral and colour-charged mediators and vector or pseudo-scalar mediators embedded in extended Higgs sector models. In this case, also s√ = 8 TeV pp collision data are used for the interpretation of the results. The results are also interpreted for the first time in terms of light scalar particles that could contribute to the accelerating expansion of the universe (dark energy).

Type: Article
Title: Constraints on mediator-based dark matter and scalar dark energy models using root s= 13 TeV pp collision data collected by the ATLAS detector
Open access status: An open access version is available from UCL Discovery
DOI: 10.1007/JHEP05(2019)142
Publisher version: https://doi.org/10.1007/JHEP05(2019)142
Language: English
Additional information: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Keywords: Science & Technology, Physical Sciences, Physics, Particles & Fields, Physics, Dark matter, Hadron-Hadron scattering (experiments), EFFECTIVE-FIELD THEORY, ROOT-S=13 TEV, SEARCH, ASSOCIATION, CANDIDATES, VIOLATION, QUARK, BOSON, WEAK
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/10076476
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