Search for a heavy composite Majorana neutrino in events with dilepton signatures from proton-proton collisions at √s=13 Tev

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dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAndrejkovic, J. W.
dc.contributor.authorBergauer, T.
dc.contributor.authorChatterjee, S.
dc.contributor.authorDamanakis, K.
dc.contributor.authorDragicevic, M.
dc.date.accessioned2024-06-13T20:18:04Z
dc.date.available2024-06-13T20:18:04Z
dc.date.issued2023
dc.departmentİstanbul Gedik Üniversitesi
dc.description.abstractResults are presented of a search for a heavy Majorana neutrino N ? decaying into two same-flavor leptons ? (electrons or muons) and a quark-pair jet. A model is considered in which the N ? is an excited neutrino in a compositeness scenario. The analysis is performed using a sample of proton-proton collisions at & RADIC;s = 13 TeV recorded by the CMS experiment at the CERN LHC, corresponding to an integrated luminosity of 138 fb-1. The data are found to be in agreement with the standard model prediction. For the process in which the N ? is produced in association with a lepton, followed by the decay of the N ? to a same-flavor lepton and a quark pair, an upper limit at 95% confidence level on the product of the cross section and branching fraction is obtained as a function of the N ? mass mN ? and the compositeness scale ?. For this model the data exclude the existence of Ne (N & mu;) for mN ? below 6.0 (6.1) TeV, at the limit where mN ? is equal to ?. For mN ? N 1 TeV, values of ? less than 20 (23) TeV are excluded. These results represent a considerable improvement in sensitivity, covering a larger parameter space than previous searches in pp collisions at 13 TeV.
dc.description.sponsorshipBMBWF and FWF (Austria); FNRS and FWO (Belgium); CNPq; CAPES; FAPERJ; FAPERGS; FAPESP (Brazil); MES and BNSF (Bulgaria); CERN; CAS, MOST; NSFC (China); MINCIENCIAS (Colombia); MSES and CSF (Croatia); RIF (Cyprus); SENESCYT (Ecuador); MoER, ERC PUT and ERDF (Estonia); Academy of Finland, MEC; HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRI (Greece); NKFIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Republic of Korea); MES (Latvia); LAS (Lithuania); MOE and UM (Malaysia); BUAP, CINVESTAV; CONACYT, LNS; SEP; UASLP-FAI (Mexico); MOS (Montenegro); MBIE (New Zealand); PAEC (Pakistan); MES and NSC (Poland); FCT (Portugal); MESTD (Serbia); MCIN/AEI and PCTI (Spain); MoSTR (Sri Lanka); Swiss Funding Agencies (Switzerland); MST (Taipei); MHESI and NSTDA (Thailand); TUBITAK and TENMAK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (USA); European Research Council and Horizon 2020 Grant [675440, 724704, 752730, 758316, 765710, 824093, 884104]; COST Action [CA16108]; Leventis Foundation; Alfred P. Sloan Foundation; Alexander von Humboldt Foundation; Belgian Federal Science Policy Office; Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); F.R.S.-FNRS and FWO (Belgium) under the Excellence of Science - EOS [30820817]; Beijing Municipal Science amp; Technology Commission [Z191100007219010]; Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; Hellenic Foundation for Research and Innovation (HFRI) [2288]; Deutsche Forschungsgemeinschaft (DFG), under Germany's Excellence Strategy - EXC 2121 Quantum Universe [390833306, 400140256 -GRK2497]; Hungarian Academy of Sciences; New National Excellence Program -UNKP; NKFIH [K 124845, K 124850, K 128713, K 128786, K 129058, K 131991, K 133046, K 138136, K 143460, K 143477, 2020-2.2.1-ED-2021-00181]; TKP2021-NKTA-64 (Hungary); Council of Science and Industrial Research, India; Latvian Council of Science; Ministry of Education and Science [2022/WK/14]; National Science Center, contracts Opus [2021/41/B/ST2/01369, 2021/43/B/ST2/01552]; Fundacao para a Ciencia e a Tecnologia [CEECIND/01334/2018]; National Priorities Research Program by Qatar National Research Fund; ERDF a way of making Europe; Programa Estatal de Fomento de la Investigacion Cientifica y Tecnica de Excelencia Maria de Maeztu [MDM-2017-0765]; Programa Severo Ochoa del Principado de Asturias (Spain); National Science, Research and Innovation Fund via the Program Management Unit for Human Resources amp; Institutional Development, Research and Innovation [B05F650021]; Kavli Foundation; Nvidia Corporation; SuperMicro Corporation; Welch Foundation [C-1845]; Weston Havens Foundation (USA)
dc.identifier.doi10.1016/j.physletb.2023.137803
dc.identifier.issn0370-2693
dc.identifier.issn1873-2445
dc.identifier.scopus2-s2.0-85165710255
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.physletb.2023.137803
dc.identifier.urihttps://hdl.handle.net/11501/1206
dc.identifier.volume843
dc.identifier.wosWOS:001038664500001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofPhysics Letters B
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectCMS
dc.subjectLHC
dc.subjectComposite Fermions
dc.subjectHeavy Leptons
dc.titleSearch for a heavy composite Majorana neutrino in events with dilepton signatures from proton-proton collisions at √s=13 Tev
dc.title.alternativeSearch for a heavy composite Majorana neutrino in events with dilepton signatures from proton-proton collisions at s=13 TeV
dc.typeArticle

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