Search for leptoquark pair production decaying into te− t̄e+ or tμ− t̄μ+ in multi-lepton final states in pp collisions at √s = 13TeV with the ATLAS detector
A search for leptoquark pair production decaying into te- t̄e+ or tμ− t̄μ+ in final states with multiple leptons is presented. The search is based on a dataset of pp collisions at √s =13 TeV recorded with the ATLAS detector during Run 2 of the Large Hadron Collider, corresponding to an integrated lu...
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| Hauptverfasser: | , , |
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| Weitere Verfasser: | , , , , , , , , , , , , , , , , , |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
14 August 2024
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| In: |
The European physical journal. C, Particles and fields
Year: 2024, Jahrgang: 84, Heft: 8, Pages: 1-40 |
| ISSN: | 1434-6052 |
| DOI: | 10.1140/epjc/s10052-024-12975-4 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1140/epjc/s10052-024-12975-4
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| Verfasserangaben: | ATLAS Collaboration |
MARC
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| 245 | 1 | 0 | |a Search for leptoquark pair production decaying into te− t̄e+ or tμ− t̄μ+ in multi-lepton final states in pp collisions at √s = 13TeV with the ATLAS detector |c ATLAS Collaboration |
| 246 | 3 | 3 | |a Search for leptoquark pair production decaying into te minus t [bar] e plus or t mu minus t [bar] mu plus in multi-lepton final states in pp collisions at square root s = 13TeV with the ATLAS detector |
| 264 | 1 | |c 14 August 2024 | |
| 300 | |b Illustrationen | ||
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| 500 | |a Im Text ist "-" und "+" jeweils hochgestellt | ||
| 500 | |a Im Titel steht s unter dem Wurzelzeichen | ||
| 500 | |a ATLAS Collaboration: G. Aad, L.M. Baltes, F. Bartels, S. Dittmeier, M. Dunford, S. Franchino, M. Klassen, T. Mkrtchyan, P.S. Ott, D.F. Rassloff, S. Rodriguez Bosca, C. Sauer, A. Schoening, H-C. Schultz-Coulon, V. Sothilingam, R. Stamen, P. Starovoitov, L. Vigani, S.M. Weber, M. Wessels, J. Zinsser [und viele weitere] | ||
| 500 | |a Gesehen am 16.07.2025 | ||
| 520 | |a A search for leptoquark pair production decaying into te- t̄e+ or tμ− t̄μ+ in final states with multiple leptons is presented. The search is based on a dataset of pp collisions at √s =13 TeV recorded with the ATLAS detector during Run 2 of the Large Hadron Collider, corresponding to an integrated luminosity of 139 fb-1. Four signal regions, with the requirement of at least three light leptons (electron or muon) and at least two jets out of which at least one jet is identified as coming from a b-hadron, are considered based on the number of leptons of a given flavour. The main background processes are estimated using dedicated control regions in a simultaneous fit with the signal regions to data. No excess above the Standard Model background prediction is observed and 95% confidence level limits on the production cross section times branching ratio are derived as a function of the leptoquark mass. Under the assumption of exclusive decays into te- (tmu -), the corresponding lower limit on the scalar mixed-generation leptoquark mass mLQdmix is at 1.58 (1.59) TeV and on the vector leptoquark mass m tildeU1 at 1.67 (1.67) TeV in the minimal coupling scenario and at 1.95 (1.95) TeV in the Yang-Mills scenario. | ||
| 650 | 4 | |a Experimental Nuclear Physics | |
| 650 | 4 | |a Experimental Particle Physics | |
| 650 | 4 | |a Particle Physics | |
| 650 | 4 | |a Theoretical Particle Physics | |
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