Search for R-parity-violating supersymmetry in a final state containing leptons and many jets with the ATLAS experiment using s√=13 TeV proton–proton collision data
2021-11-23 | journal article. A publication with affiliation to the University of Göttingen.
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Search for R-parity-violating supersymmetry in a final state containing leptons and many jets with the ATLAS experiment using s√=13 TeV proton–proton collision data
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, Particles and Fields, 81(11) art. 1023. DOI: https://doi.org/10.1140/epjc/s10052-021-09761-x
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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.; Abramowicz, H.; Abreu, H.; Abulaiti, Y.; Albert, J.; Zhang, B.; Zhang, J.; Zhang, K.; Zhang, M.; Zhang, S.; Zhao, Z.; Zhou, Y.; Zhu, C.; Zimmermann, S.; Ali, S.; Anthony, M. T.; Arnold, H.; Balaji, S.; Bauer, F.; Chen, J.; Chen, J.; Chen, J.; Chen, S.; Chen, Y.; David, C.; De Castro, S.; Degens, J.; Dreyer, T.; Falke, S.; Fournier, D.; Gao, Y.; Gao, Y. S.; George, S.; Grosse-Knetter, J.; Guenther, J.; Han, S.; Harenberg, T.; Heim, S.; Heim, T.; Herrmann, T.; Holm, T.; Hu, S.; Jin, S.; Keller, J. 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.; Lu, S.; 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.; Seitz, C.; Sen, S.; Sharma, S.; Wang, C.; Wang, C.; Wang, H.; Wang, J.; Wang, Y.; Weber, M. S.; Xu, Y.
- Abstract
- Abstract A search for R-parity-violating supersymmetry in final states characterized by high jet multiplicity, at least one isolated light lepton and either zero or at least three b -tagged jets is presented. The search uses ${139}\,{\text {fb}^{-1}}$ 139 fb - 1 of $\sqrt{s} = {13}\hbox { TeV}$ s = 13 TeV proton–proton collision data collected by the ATLAS experiment during Run 2 of the Large Hadron Collider. The results are interpreted in the context of R-parity-violating supersymmetry models that feature gluino production, top-squark production, or electroweakino production. The dominant sources of background are estimated using a data-driven model, based on observables at medium jet multiplicity, to predict the b -tagged jet multiplicity distribution at the higher jet multiplicities used in the search. Machine-learning techniques are used to reach sensitivity to electroweakino production, extending the data-driven background estimation to the shape of the machine-learning discriminant. No significant excess over the Standard Model expectation is observed and exclusion limits at the 95% confidence level are extracted, reaching as high as 2.4 TeV in gluino mass, 1.35 TeV in top-squark mass, and 320 (365) GeV in higgsino (wino) mass.
- Issue Date
- 23-November-2021
- Publisher
- Springer Berlin Heidelberg
- Journal
- The European Physical Journal. C, Particles and Fields
- ISSN
- 1434-6044
- eISSN
- 1434-6052
- Language
- English
