Search for heavy Majorana neutrinos in same-sign dilepton channels in proton-proton collisions at √s=13 TeV

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dc.authoridSordini, Viola/0000-0003-0885-824X
dc.authoridTonelli, Guido Emilio/0000-0003-2606-9156
dc.authoridMadlener, Thomas/0000-0002-0128-6536
dc.authoridFlaecher, Henning/0000-0002-5371-941X
dc.authoridFaltermann, Nils/0000-0001-6506-3107
dc.authoridPopov, Andrey/0000-0002-1207-0984
dc.authoridReyes-Almanza, Rogelio/0000-0002-4600-7772
dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAmbrogi, F.
dc.contributor.authorAsilar, E.
dc.contributor.authorBergauer, T.
dc.contributor.authorBrandstetter, J.
dc.date.accessioned2025-03-23T19:47:03Z
dc.date.available2025-03-23T19:47:03Z
dc.date.issued2019
dc.departmentSinop Üniversitesi
dc.description.abstractA search is performed for a heavy Majorana neutrino (N), produced in leptonic decay of a W boson propagator and decaying into a W boson and a lepton, with the CMS detector at the LHC. The signature used in this search consists of two same-sign leptons, in any flavor combination of electrons and muons, and at least one jet. The data were collected during 2016 in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb(-1). The results are found to be consistent with the expected standard model background. Upper limits are set in the mass range between 20 and 1600 GeV in the context of a Type-I seesaw mechanism, on |V-eN|(2), |V-N|(2), and |VeNV *|(2)/(|V-eN|(2)+|V-N|(2)), where V-N is the matrix element describing the mixing of N with the standard model neutrino of flavor = e, . For N masses between 20 and 1600 GeV, the upper limits on |V-N|(2) range between 2.3 x 10(-5) and unity. These are the most restrictive direct limits for heavy Majorana neutrino masses above 430 GeV.
dc.description.sponsorshipAustrian Federal Ministry of Science, Research and Economy; Austrian Science Fund; Belgian Fonds de la Recherche Scientifique; Fonds voor Wetenschappelijk Onderzoek; Brazilian Funding Agency (CNPq); Brazilian Funding Agency (CAPES); Brazilian Funding Agency (FAPERJ); Brazilian Funding Agency (FAPERGS); Brazilian Funding Agency (FAPESP); Bulgarian Ministry of Education and Science; CERN; Chinese Academy of Sciences, Ministry of Science and Technology; National Natural Science Foundation of China; Colombian Funding Agency (COLCIENCIAS; Croatian Ministry of Science, Education and Sport; Croatian Science Foundation; Research Promotion Foundation, Cyprus; Secretariat for Higher Education, Science, Technology and Innovation, Ecuador; Ministry of Education and Research, Estonia; Estonian Research Council, Estonia [IUT23-4, IUT23-6]; European Regional Development Fund, Estonia; Academy of Finland; Finnish Ministry of Education and Culture; Helsinki Institute of Physics; Institut National de Physique Nucleaire et de Physique des Particules/CNRS, France; Commissariat a l'Energie Atomique et aux Energies Alternatives/CEA, France; Bundesministerium fur Bildung und Forschung, Germany; Deutsche Forschungsgemeinschaft, Germany; Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany; General Secretariat for Research and Technology, Greece; National Research, Development and Innovation Fund, Hungary; Department of Atomic Energy, India; Department of Science and Technology, India; Institute for Studies in Theoretical Physics and Mathematics, Iran; Science Foundation, Ireland; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Science, ICT and Future Planning, Republic of Korea; National Research Foundation (NRF), Republic of Korea; Lithuanian Academy of Sciences; Ministry of Education (Malaysia); University of Malaya (Malaysia); Ministry of Science of Montenegro; Mexican Funding Agency (BUAP); Mexican Funding Agency (CINVESTAV); Mexican Funding Agency (CONACYT); Mexican Funding Agency (LNS); Mexican Funding Agency (SEP); Mexican Funding Agency (UASLP-FAI); Ministry of Business, Innovation and Employment, New Zealand; Pakistan Atomic Energy Commission; Ministry of Science and Higher Education, Poland; National Science Center, Poland; Fundacao para a Ciencia e a Tecnologia, Portugal; JINR, Dubna; Ministry of Education and Science of the Russian Federation; Federal Agency of Atomic Energy of the Russian Federation; Russian Academy of Sciences; Russian Foundation for Basic Research; National Research Center Kurchatov Institute; Ministry of Education, Science and Technological Development of Serbia; Secretaria de Estado de Investigacion, Desarrollo e Innovacion, Programa Consolider-Ingenio 2010, Spain; Plan Estatal de Investigacion Cientifica y Tecnica y de Innovacion 2013-2016, Spain; Plan de Ciencia, Tecnologia e Innovacion 2013-2017 del Principado de Asturias, Spain; Fondo Europeo de Desarrollo Regional, Spain; Ministry of Science, Technology and Research, Sri Lanka; Swiss Funding Agency (ETH Board); Swiss Funding Agency (ETH Zurich); Swiss Funding Agency (PSI); Swiss Funding Agency (SNF); Swiss Funding Agency (UniZH); Swiss Funding Agency (Canton Zurich); Swiss Funding Agency (SER); Ministry of Science and Technology, Taipei; Thailand Center of Excellence in Physics; Institute for the Promotion of Teaching Science and Technology of Thailand; Special Task Force for Activating Research; National Science and Technology Development Agency of Thailand; Scientific and Technical Research Council of Turkey; Turkish Atomic Energy Authority; National Academy of Sciences of Ukraine, Ukraine; State Fund for Fundamental Researches, Ukraine; Science and Technology Facilities Council, U.K.; U.S. Department of Energy; U.S. National Science Foundation; Marie-Curie program (European Union); European Research Council and Horizon 2020 Grant (European Union) [675440]; Leventis Foundation; A. 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); F.R.S.-FNRS (Belgium) under the Excellence of Science - EOS - be.h project [30820817]; FWO (Belgium) under the Excellence of Science - EOS - be.h project [30820817]; Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; Lendulet (Momentum) Program (Hungary); Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences (Hungary); New National Excellence Program UNKP (Hungary); NKFIA (Hungary) [123842, 123959, 124845, 124850, 125105]; Council of Scientific and Industrial Research, India; HOMING PLUS program of the Foundation for Polish Science; European Union, Regional Development Fund (Poland) [Harmonia 2014/14/M/ST2/00428, Opus 2014/13/B/ST2/02543, 2014/15/B/ST2/03998, 2015/19/B/ST2/02861, Sonata-bis 2012/07/E/ST2/01406]; Mobility Plus program of the Ministry of Science and Higher Education (Poland) [Harmonia 2014/14/M/ST2/00428, Opus 2014/13/B/ST2/02543, 2014/15/B/ST2/03998, 2015/19/B/ST2/02861, Sonata-bis 2012/07/E/ST2/01406]; National Science Center (Poland) [Harmonia 2014/14/M/ST2/00428, Opus 2014/13/B/ST2/02543, 2014/15/B/ST2/03998, 2015/19/B/ST2/02861, Sonata-bis 2012/07/E/ST2/01406]; National Priorities Research Program by Qatar National Research Fund; Programa de Excelencia Maria de Maeztu; Programa Severo Ochoa del Principado de Asturias; Thalis program - EU-ESF; Aristeia program - EU-ESF; Greek NSRF; Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University (Thailand); Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand); Welch Foundation [C-1845]; Weston Havens Foundation (U.S.A.); STFC [ST/I003622/1, ST/F007434/1, ST/N000242/1, ST/K003542/1, ST/N001273/1, ST/L005603/1, ST/I505580/1, ST/J004871/1, ST/M004775/1] Funding Source: UKRI
dc.description.sponsorshipWe congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centers and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. r r Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: the Austrian Federal Ministry of Science, Research and Economy and the Austrian Science Fund; the Belgian Fonds de la Recherche Scientifique, and Fonds voor Wetenschappelijk Onderzoek; the Brazilian Funding Agencies (CNPq, CAPES, FAPERJ, FAPERGS, and FAPESP); the Bulgarian Ministry of Education and Science; CERN; the Chinese Academy of Sciences, Ministry of Science and Technology, and National Natural Science Foundation of China; the Colombian Funding Agency (COLCIENCIAS); the Croatian Ministry of Science, Education and Sport, and the Croatian Science Foundation; the Research Promotion Foundation, Cyprus; the Secretariat for Higher Education, Science, Technology and Innovation, Ecuador; the Ministry of Education and Research, Estonian Research Council via IUT23-4 and IUT23-6 and European Regional Development Fund, Estonia; the Academy of Finland, Finnish Ministry of Education and Culture, and Helsinki Institute of Physics; the Institut National de Physique Nucleaire et de Physique des Particules/CNRS, and Commissariat a l'Energie Atomique et aux Energies Alternatives/CEA, France; the Bundesministerium fur Bildung und Forschung, Deutsche Forschungsgemeinschaft, and Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany; the General Secretariat for Research and Technology, Greece; the National Research, Development and Innovation Fund, Hungary; the Department of Atomic Energy and the Department of Science and Technology, India; the Institute for Studies in Theoretical Physics and Mathematics, Iran; the Science Foundation, Ireland; the Istituto Nazionale di Fisica Nucleare, Italy; the Ministry of Science, ICT and Future Planning, and National Research Foundation (NRF), Republic of Korea; the Lithuanian Academy of Sciences; the Ministry of Education, and University of Malaya (Malaysia); the Ministry of Science of Montenegro; the Mexican Funding Agencies (BUAP, CINVESTAV, CONACYT, LNS, SEP, and UASLP-FAI); the Ministry of Business, Innovation and Employment, New Zealand; the Pakistan Atomic Energy Commission; the Ministry of Science and Higher Education and the National Science Center, Poland; the Fundacao para a Ciencia e a Tecnologia, Portugal; JINR, Dubna; the Ministry of Education and Science of the Russian Federation, the Federal Agency of Atomic Energy of the Russian Federation, Russian Academy of Sciences, the Russian Foundation for Basic Research, and the National Research Center Kurchatov Institute; the Ministry of Education, Science and Technological Development of Serbia; the Secretaria de Estado de Investigacion, Desarrollo e Innovacion, Programa Consolider-Ingenio 2010, Plan Estatal de Investigacion Cientifica y Tecnica y de Innovacion 2013-2016, Plan de Ciencia, Tecnologia e Innovacion 2013-2017 del Principado de Asturias, and Fondo Europeo de Desarrollo Regional, Spain; the Ministry of Science, Technology and Research, Sri Lanka; the Swiss Funding Agencies (ETH Board, ETH Zurich, PSI, SNF, UniZH, Canton Zurich, and SER); the Ministry of Science and Technology, Taipei; the Thailand Center of Excellence in Physics, the Institute for the Promotion of Teaching Science and Technology of Thailand, Special Task Force for Activating Research and the National Science and Technology Development Agency of Thailand; the Scientific and Technical Research Council of Turkey, and Turkish Atomic Energy Authority; the National Academy of Sciences of Ukraine, and State Fund for F unr dar mental Researches, Ukraine; the Science and Technology Facilities Council, U.K.; the U.S. Department of Energy, and the U.S. National Science Foundation.r Individuals have received support from the Marie-Curie program and the European Research Council and Horizon 2020 Grant, contract No. 675440 (European Union); the Leventis Foundation; the A. P. Sloan Foundation; the Alexander von Humboldt Foundation; the Belgian Federal Science Policy Office; the Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); the F.R.S.-FNRS and FWO (Belgium) under the Excellence of Science - EOS - be.h project n. 30820817; the Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; the Lendulet (Momentum) Program and the Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences, the New National Excellence Program UNKP, the NKFIA research grants 123842, 123959, 124845, 124850 and 125105 (Hungary); the Council of Scientific and Industrial Research, India; the HOMING PLUS program of the Foundation for Polish Science, cofinanced from European Union, Regional Development Fund, the Mobility Plus program of the Ministry of Science and Higher Education, the National Science Center (Poland), contracts Harmonia 2014/14/M/ST2/00428, Opus 2014/13/B/ST2/02543, 2014/15/B/ST2/03998, and 2015/19/B/ST2/02861, Sonata-bis 2012/07/E/ST2/01406; the National Priorities Research Program by Qatar National Research Fund; the Programa de Excelencia Maria de Maeztu, and the Programa Severo Ochoa del Principado de Asturias; the Thalis and Aristeia programs cofinanced by EU-ESF, and the Greek NSRF; the Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University, and the Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand); the Welch Foundation, contract C-1845; and the Weston Havens Foundation (U.S.A.).
dc.identifier.doi10.1007/JHEP01(2019)122
dc.identifier.issn1029-8479
dc.identifier.issue1
dc.identifier.scopus2-s2.0-85060299407
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1007/JHEP01(2019)122
dc.identifier.urihttps://hdl.handle.net/11486/7263
dc.identifier.wosWOS:000456243300001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofJournal of High Energy Physics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20250323
dc.subjectBeyond Standard Model
dc.subjectHadron-Hadron scattering (experiments)
dc.titleSearch for heavy Majorana neutrinos in same-sign dilepton channels in proton-proton collisions at √s=13 TeV
dc.typeArticle

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