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| Titel: | Search for heavy right-handed Majorana neutrinos in the decay of top quarks produced in proton-proton collisions at √s=13 TeV with the ATLAS detector |
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| Mitwirkende: | Aad, Georges [VerfasserIn]  |
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| | Ackermann, Anke [VerfasserIn] |
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| | Baltes, Lisa Marie [VerfasserIn] |
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| | Bartels, Falk [VerfasserIn] |
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| | Rio, Fernando del [VerfasserIn] |
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| | Dittmeier, Sebastian [VerfasserIn] |
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| | Dunford, Monica [VerfasserIn] |
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| | Franchino, Silvia [VerfasserIn] |
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| | Junkermann, Thomas [VerfasserIn] |
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| | Mkrtchyan, Tigran [VerfasserIn] |
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| | Ott, Philipp [VerfasserIn] |
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| | Rassloff, Damir Fabrice [VerfasserIn] |
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| | Sanfilippo, Lorenzo [VerfasserIn] |
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| | Sauer, Christof [VerfasserIn] |
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| | Schöning, André [VerfasserIn] |
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| | Schultz-Coulon, Hans-Christian [VerfasserIn] |
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| | Sothilingam, Varsiha [VerfasserIn] |
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| | Stamen, Rainer [VerfasserIn] |
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| | Starovoitov, Pavel [VerfasserIn] |
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| | Vigani, Luigi [VerfasserIn] |
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| | Weber, Sebastian [VerfasserIn] |
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| | Wessels, Martin [VerfasserIn] |
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| | Zinßer, Joachim [VerfasserIn] |
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| Körperschaft: | ATLAS Collaboration [VerfasserIn] |
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| Verf.angabe: | G. Aad et al., (ATLAS Collaboration) |
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| E-Jahr: | 2024 |
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| Jahr: | 2 December 2024 |
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| Umfang: | 33 S. |
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| Illustrationen: | Illustrationen |
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| Fussnoten: | ATLAS Collaboration: G. Aad, A. Ackermann, L.M. Baltes, F. Bartels, F. Del Rio, S.J. Dittmeier, M. Dunford, S. Franchino, T. Junkermann, T. Mkrtchyan, P.S. Ott, D.F. Rassloff, L. Sanfilippo, C. Sauer, A. Schoening, H.-C. Schultz-Coulon, V. Sothilingam, R. Stamen, P. Starovoitov, L. Vigani, S. M. Weber, M. Wessels, J. Zinsser [und 2909 weitere] ; Gesehen am 03.07.2025 |
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| Titel Quelle: | Enthalten in: Physical review |
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| Ort Quelle: | Ridge, NY : American Physical Society, 2016 |
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| Jahr Quelle: | 2024 |
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| Band/Heft Quelle: | 110(2024), 11 vom: Dez., Artikel-ID 112004, Seite 1-33 |
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| ISSN Quelle: | 2470-0029 |
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| Abstract: | A search for heavy right-handed Majorana neutrinos is performed with the ATLAS detector at the CERN Large Hadron Collider, using the 140 fb−1 of proton-proton collision data at √???? =13 TeV collected during Run 2. This search targets ????¯???? production, in which both top quarks decay into a bottom quark and a ???? boson, where one of the ???? bosons decays hadronically and the other decays into an electron or muon and a heavy neutral lepton. The heavy neutral lepton is identified through a decay into an electron or muon and another ???? boson, resulting in a pair of same-charge same-flavor leptons in the final state. This paper presents the first search for heavy neutral leptons in the mass range of 15-75 GeV using ????¯???? events. No significant excess is observed over the background expectation, and upper limits are placed on the signal cross sections. Assuming a benchmark scenario of the phenomenological type-I seesaw model, these cross section limits are then translated into upper limits on the mixing parameters of the heavy Majorana neutrino with Standard Model neutrinos. |
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| DOI: | doi:10.1103/PhysRevD.110.112004 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
kostenfrei: Volltext: https://doi.org/10.1103/PhysRevD.110.112004 |
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| | kostenfrei: Volltext: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.110.112004 |
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| | DOI: https://doi.org/10.1103/PhysRevD.110.112004 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| K10plus-PPN: | 1929688962 |
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| Verknüpfungen: | → Zeitschrift |
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Search for heavy right-handed Majorana neutrinos in the decay of top quarks produced in proton-proton collisions at √s=13 TeV with the ATLAS detector / Aad, Georges [VerfasserIn]; 2 December 2024 (Online-Ressource)
