Search for heavy neutral leptons in decays of W bosons using leptonic and semi-leptonic displaced vertices in √s=13 TeV pp collisions with the ATLAS detector
- NázevTitle
- Search for heavy neutral leptons in decays of W bosons using leptonic and semi-leptonic displaced vertices in √s=13 TeV pp collisions with the ATLAS detectorSearch for heavy neutral leptons in decays of W bosons using leptonic and semi-leptonic displaced vertices in √s=13 TeV pp collisions with the ATLAS detector
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- G. Aad, E. Aakvaag, B. Abbott, S. Abdelhameed, B. Ali, K. Augsten, B. Bergmann, P. Fiedler, Z. Hubáček, V. Lysenko, S. Mondal, M. Myška, R. Novotný, V. Petousis, S. Pospíšil, K. Smolek, P. Smolyanskiy, A. Sopczak, V. Vacek, P. Vokáč, O. Zaplatílek
- Klíčová slovaKeywords
- Beyond Standard Model, Exotics, Hadron-Hadron Scattering
- ExperimentCollaboration
- ATLAS
- DOIDOI
- 10.1007/JHEP07(2025)196
- Časopis / citaceJournal / citation
- Journal of High Energy Physics 2025(7), 196 (2025) · ISSN 1029-8479
- RokYear
- 2025
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Institucionální podpora na rozvoj výzkumné org.Institucionální podpora na rozvoj výzkumné org.; CERN-CZ III - Výzkumná infrastruktura pro experimenty v CERN - LM2023040 (2023–2026)CERN-CZ III - Výzkumná infrastruktura pro experimenty v CERN - LM2023040 (2023–2026); Výzkum základních stavebních kamenů hmoty s využitím špičkových technologiíFundamental constituents of matter through frontier technologies
- CitovánoCited by
- 31 (INSPIRE-HEP)
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
A search is performed for long-lived heavy neutral leptons (HNLs), produced through the decay of a W boson along with a muon or electron. Two channels are explored: a leptonic channel, in which the HNL decays into two leptons and a neutrino, and a semi-leptonic channel, in which the HNL decays into a lepton and a charged pion. The search is performed with 140 fb(-1) of root s = 13 TeV proton-proton collision data collected by ATLAS during Run 2 of the Large Hadron Collider. No excess of events is observed; Dirac-like and Majorana-like HNLs with masses below 14.5 GeV and mixing coefficients as small as 10(-7) are excluded at the 95% confidence level. The results are interpreted under different assumptions on the flavour of the leptons from the HNL decays.
A search is performed for long-lived heavy neutral leptons (HNLs), produced through the decay of a W boson along with a muon or electron. Two channels are explored: a leptonic channel, in which the HNL decays into two leptons and a neutrino, and a semi-leptonic channel, in which the HNL decays into a lepton and a charged pion. The search is performed with 140 fb(-1) of root s = 13 TeV proton-proton collision data collected by ATLAS during Run 2 of the Large Hadron Collider. No excess of events is observed; Dirac-like and Majorana-like HNLs with masses below 14.5 GeV and mixing coefficients as small as 10(-7) are excluded at the 95% confidence level. The results are interpreted under different assumptions on the flavour of the leptons from the HNL decays.