Search for heavy neutral leptons in decays of W bosons using a dilepton displaced vertex in √s=13 TeV pp collisions with the ATLAS detector
A search for a long-lived, heavy neutral lepton (N) in 139 fb−1 of √s=13 TeV pp collision data collected by the ATLAS detector at the Large Hadron Collider is reported. The N is produced via W→Nμ or W→Ne and decays into two charged leptons and a neutrino, forming a displaced vertex. The N mass is us...
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
7 August 2023
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| In: |
Physical review letters
Year: 2023, Volume: 131, Issue: 6, Pages: 1-23 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.131.061803 |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevLett.131.061803 Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.131.061803 
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| Author Notes: | G. Aad et al. (ATLAS Collaboration)* |
MARC
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| 245 | 1 | 0 | |a Search for heavy neutral leptons in decays of W bosons using a dilepton displaced vertex in √s=13 TeV pp collisions with the ATLAS detector |c G. Aad et al. (ATLAS Collaboration)* |
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| 246 | 3 | 3 | |a Search for heavy neutral leptons in decays of W bosons using a dilepton displaced vertex in square root s = 13 TeV proton-proton collisions with the ATLAS detector |
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| 500 | |a *ATLAS Collaboration: G. Aad, L.M. Baltes, F. Bartels, F.L. Castillo, M.M. Czurylo, F. Del Rio, S.J. 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 2835 weitere Personen] | ||
| 500 | |a Im Titel steht der Buchstabe s unter dem Wurzelsymbol | ||
| 500 | |a Gesehen am 15.02.2024 | ||
| 520 | |a A search for a long-lived, heavy neutral lepton (N) in 139 fb−1 of √s=13 TeV pp collision data collected by the ATLAS detector at the Large Hadron Collider is reported. The N is produced via W→Nμ or W→Ne and decays into two charged leptons and a neutrino, forming a displaced vertex. The N mass is used to discriminate between signal and background. No signal is observed, and limits are set on the squared mixing parameters of the N with the left-handed neutrino states for the N mass range 3 GeV<mN<15 GeV. For the first time, limits are given for both single-flavor and multiflavor mixing scenarios motivated by neutrino flavor oscillation results for both the normal and inverted neutrino-mass hierarchies. | ||
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