Search for dark matter produced in association with a single top quark in $\sqrt{s}=13$ TeV $ collisions with the ATLAS detector
2021-10-01 | journal article. A publication with affiliation to the University of Göttingen.
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Search for dark matter produced in association with a single top quark in $\sqrt{s}=13$ TeV $ collisions with the ATLAS detector
Aad, G.; Abbott, B.; Abbott, D. C.; Abud, A. A.; Abeling, K.; Abhayasinghe, D. K. & Abidi, S. H. et al. (2021)
The European Physical Journal C, 81(10) art. 860. DOI: https://doi.org/10.1140/epjc/s10052-021-09566-y
Documents & Media
Details
- Authors Group
- ATLAS Collaboration
The authors list is uncomplete: - Authors
- Aad, G.; Abbott, B.; Abbott, D. C.; Abud, A. A.; Abeling, K.; Abhayasinghe, D. K.; Abidi, S. H.; AbouZeid, O. S.; Abraham, N. L.; Abramowicz, H.; Abreu, H.; Abulaiti, Y.; Acharya, B. S.; Achkar, B.; Adam, L.; Bourdarios, C. A.; Adamczyk, L.; Adamek, L.; Adelman, J.; Adiguzel, A.; Adorni, S.; Adye, T.; Affolder, A. A.; Afik, Y.; Agapopoulou, C.; Agaras, M. N.; Aggarwal, A.; Agheorghiesei, C.; Aguilar-Saavedra, J. A.; Ahmad, A.; Ahmadov, F.; Ahmed, W. S.; Ai, X.; Aielli, G.; Akatsuka, S.; Akbiyik, M.; Åkesson, T. P. A.; Akilli, E.; Akimov, A. V.; Khoury, K. A.; Alberghi, G. L.; Albert, J.; Verzini, M. J. A.; Alderweireldt, S.; Aleksa, M.; Aleksandrov, I. N.; Alexa, C.; Alexopoulos, T.; Alfonsi, A.; Alfonsi, F.; Anthony, M. T.; Arnold, H.; Balaji, S.; Cao, T.; Chen, Y.; Dreyer, T.; Falke, S.; Fournier, D.; Gao, Y.; Gao, Y. S.; Grosse-Knetter, J.; Guenther, J.; Harenberg, T.; Jin, S.; Kaplan, L. S.; Kim, E.; Kluth, S.; Krüger, H.; Kuhl, T.; Lai, S.; Lehmann, K.; Lehmann, N.; Li, H.; Li, H.; Li, J.; Li, K.; Li, X.; Li, Y.; Liu, B.; Lorenz, J.; Lu, M.; Lutz, M. S.; Martinez, M.; Menke, S.; Meyer, C.; Morgenstern, S.; Mueller, J.; Quadt, A.; Rajagopalan, S.; Rave, S.; Schaefer, L.; Schoening, A.; Schott, M.; Schulte, A.; Seitz, C.; Sen, S.; Wang, C.; Wang, C.; Wang, H.; Wang, H.; Wang, J.; Wang, Y.; Weber, M. S.; Xu, T.; Xu, Y.; Zhang, B.; Zhang, J.; Zhang, M.; Zhang, Y.; Zhao, Z.; Zhou, Y.; Zhu, C.
- Abstract
- Abstract This paper presents a search for dark matter in the context of a two-Higgs-doublet model together with an additional pseudoscalar mediator, a, which decays into the dark-matter particles. Processes where the pseudoscalar mediator is produced in association with a single top quark in the 2HDM+a model are explored for the first time at the LHC. Several final states which include either one or two charged leptons (electrons or muons) and a significant amount of missing transverse momentum are considered. The analysis is based on proton–proton collision data collected with the ATLAS experiment at $\sqrt{s} = 13$ s = 13 TeV during LHC Run 2 (2015–2018), corresponding to an integrated luminosity of 139 $\hbox {fb}^{-1}$ fb - 1 . No significant excess above the Standard Model predictions is found. The results are expressed as 95% confidence-level limits on the parameters of the signal models considered.
- Issue Date
- 1-October-2021
- Publisher
- Springer Berlin Heidelberg
- Journal
- The European Physical Journal C
- ISSN
- 1434-6044
- eISSN
- 1434-6052
- Language
- English
