Search for heavy Majorana neutrinos in e±e± and e±μ± final states via WW scattering in pp collisions at s=13 TeV with the ATLAS detector

dc.authorscopusidAndrew John Beddall / 57215802986
dc.authorscopusidSerkant Ali Çetin / 34567544400
dc.authorscopusidSinem Şimşek / 57210344387
dc.authorscopusidZekeriya Uysal / 57210345628
dc.authorscopusidEmre Çelebi / 57193745716
dc.authorscopusidSertaç Öztürk / 56421488400
dc.authorscopusidMerve Şahinsoy / 56893808000
dc.authorwosidAndrew John Beddall / AAE-5820-2022
dc.authorwosidSertaç Öztürk / AGO-2476-2022
dc.authorwosidSerkant Ali Çetin / AGF-0147-2022
dc.authorwosidSinem Şimşek / AGG-2640-2022
dc.authorwosidZekeriya Uysal / AAD-1226-2019
dc.authorwosidMerve Şahinsoy / LTU-3507-2024
dc.contributor.authorAad, G.
dc.contributor.authorAbbott, B.
dc.contributor.authorBeddall, Andrew John
dc.contributor.authorÇetin, Serkant Ali
dc.contributor.authorÇelebi, Emre
dc.contributor.authorŞimşek, Sinem
dc.contributor.authorUysal, Zekeriya
dc.contributor.authorÖztürk, Sertaç
dc.contributor.authorŞahinsoy, Merve
dc.date.accessioned2025-04-18T10:36:18Z
dc.date.available2025-04-18T10:36:18Z
dc.date.issued2024
dc.departmentİstinye Üniversitesi, Rektörlük, Temel Bilimler Bölümü
dc.description.abstractA search for heavy Majorana neutrinos in scattering of same-sign W boson pairs in proton–proton collisions at s=13 TeV at the LHC is reported. The dataset used corresponds to an integrated luminosity of 140 fb−1, collected with the ATLAS detector during 2015–2018. The search is performed in final states including a same-sign ee or eμ pair and at least two jets with large invariant mass and a large rapidity difference. No significant excess of events with respect to the Standard Model background predictions is observed. The results are interpreted in a benchmark scenario of the Phenomenological Type-I Seesaw model. New constraints are set on the values of the |VeN|2 and |VeNVμN⁎| parameters for heavy Majorana neutrino masses between 50 GeV and 20 TeV, where VℓN is the matrix element describing the mixing of the heavy Majorana neutrino mass eigenstate with the Standard Model neutrino of flavour ℓ=e,μ. The sensitivity to the Weinberg operator is investigated and constraints on the effective ee and eμ Majorana neutrino masses are reported. The statistical combination of the ee and eμ channels with the previously published μμ channel is performed.
dc.identifier.citationAad, G., Kupco, A., Chan, J., Ma, K., Principe Martin, M. A., Delsart, P. A., ... & Masik, J. (2024). Search for heavy Majorana neutrinos in $ e^{\pm} e^{\pm} $ and $ e^{\pm}\mu^{\pm} $ final states via WW scattering in $ pp $ collisions at $\sqrt {s}= 13$ TeV with the ATLAS detector (No. CERN-EP-2024-083). ATLAS-EXOT-2023-16-003.
dc.identifier.doi10.1016/j.physletb.2024.138865
dc.identifier.endpage24
dc.identifier.issn03702693
dc.identifier.scopus2-s2.0-85195170275
dc.identifier.scopusqualityQ1
dc.identifier.startpage1
dc.identifier.urihttp://dx.doi.org/10.1016/j.physletb.2024.138865
dc.identifier.urihttps://hdl.handle.net/20.500.12713/7139
dc.identifier.volume856
dc.identifier.wosWOS:001381570200001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorBeddall, Andrew John
dc.institutionauthorÇetin, Serkant Ali
dc.institutionauthorÇelebi, Emre
dc.institutionauthorŞimşek, Sinem
dc.institutionauthorUysal, Zekeriya
dc.institutionauthorÖztürk, Sertaç
dc.institutionauthorŞahinsoy, Merve
dc.institutionauthoridAndrew John Beddall / 0000-0002-8451-9672
dc.institutionauthoridSerkant Ali Çetin / 0000-0001-5050-8441
dc.institutionauthoridSinem Şimşek / 0000-0002-9650-3846
dc.institutionauthoridZekeriya Uysal / 0000-0002-7110-8065
dc.institutionauthoridEmre Çelebi / 0000-0003-3793-0159
dc.institutionauthoridSertaç Öztürk / 0000-0001-6533-6144
dc.institutionauthoridMerve Şahinsoy / 0000-0002-7400-7286
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofPhysics letters, section b: nuclear, elementary particle and high-energy physics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleSearch for heavy Majorana neutrinos in e±e± and e±μ± final states via WW scattering in pp collisions at s=13 TeV with the ATLAS detector
dc.typeArticle

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