Search for Lepton-Flavor Violation in Z-Boson Decays with tau Leptons with the ATLAS Detector
- NázevTitle
- Search for Lepton-Flavor Violation in Z-Boson Decays with tau Leptons with the ATLAS DetectorSearch for Lepton-Flavor Violation in Z-Boson Decays with tau Leptons with the ATLAS Detector
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- G. Aad, B. Abbott, D. C. Abbott, A. Abud, B. Ali, K. Augsten, B. Bergmann, T. Billoud, M. Havránek, Z. Hubáček, S. Mondal, M. Myška, R. Novotný, V. Petousis, S. Pospíšil, K. Smolek, A. Sopczak, V. Vacek, P. Vokáč, V. Vrba
- Klíčová slovaKeywords
- Z boson, ATLAS detector, tau lepton, lepton: flavor: violation
- ExperimentCollaboration
- ATLAS
- DOIDOI
- 10.1103/PhysRevLett.127.271801
- Časopis / citaceJournal / citation
- Physical Review Letters 127(27), 271801 (2021) · ISSN 0031-9007
- RokYear
- 2021
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Získávání nových poznatků o mikrosvětě v infrastruktuře CERNAcquiring new pieces of knowledge about micro-world in CERN research infrastructure; Institucionální podpora na rozvoj výzkumné org.Institucionální podpora na rozvoj výzkumné org.; Centrum pokročilých aplikovaných přírodních vědCenter for advanced applied sciences; CERN-CZ II - Výzkumná infrastruktura pro experimenty v CERN - LM2018104 (2020–2022)CERN-CZ II - Výzkumná infrastruktura pro experimenty v CERN - LM2018104 (2020–2022)
- CitovánoCited by
- 86 (INSPIRE-HEP)
- Plný text (open access)Full text (open access)
- http://link.aps.org/pdf/10.1103/PhysRevLett.127.271801
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
A search for lepton-flavor-violating Z -> e tau and Z -> mu tau decays with pp collision data recorded by the ATLAS detector at the LHC is presented. This analysis uses 139 fb(-1) of Run 2 pp collisions at root s = 13 TeV and is combined with the results of a similar ATLAS search in the final state in which the tau lepton decays hadronically, using the same data set as well as Run 1 data. The addition of leptonically decaying tau leptons significantly improves the sensitivity reach for Z -> l tau decays. The Z -> l tau branching fractions are constrained in this analysis to B(Z -> e tau) < 7.0 x 10(-6) and B (Z -> mu tau) < 7.2 x 10(-6) at 95% confidence level. The combination with the previously published analyses sets the strongest constraints to date: B(Z -> e tau) < 5.0 x 10(-6) and B(Z -> mu tau) < 6.5 x 10(-6) at 95% confidence level.
A search for lepton-flavor-violating Z -> e tau and Z -> mu tau decays with pp collision data recorded by the ATLAS detector at the LHC is presented. This analysis uses 139 fb(-1) of Run 2 pp collisions at root s = 13 TeV and is combined with the results of a similar ATLAS search in the final state in which the tau lepton decays hadronically, using the same data set as well as Run 1 data. The addition of leptonically decaying tau leptons significantly improves the sensitivity reach for Z -> l tau decays. The Z -> l tau branching fractions are constrained in this analysis to B(Z -> e tau) < 7.0 x 10(-6) and B (Z -> mu tau) < 7.2 x 10(-6) at 95% confidence level. The combination with the previously published analyses sets the strongest constraints to date: B(Z -> e tau) < 5.0 x 10(-6) and B(Z -> mu tau) < 6.5 x 10(-6) at 95% confidence level.