Search for t t ¯ H production in the H ? b b ¯ decay channel with leptonic t t ¯ decays in proton-proton collisions at ?s=13 TeV

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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.accessioned2024-03-13T10:01:08Z
dc.date.available2024-03-13T10:01:08Z
dc.date.issued2019
dc.departmentİstanbul Beykent Üniversitesien_US
dc.description.abstractA search is presented for the associated production of a standard model Higgs boson with a top quark-antiquark pair (t t ¯ H), in which the Higgs boson decays into a b quark-antiquark pair, in proton-proton collisions at a centre-of-mass energy s=13 TeV. The data correspond to an integrated luminosity of 35.9 fb ?1 recorded with the CMS detector at the CERN LHC. Candidate t t ¯ H events are selected that contain either one or two electrons or muons from the t t ¯ decays and are categorised according to the number of jets. Multivariate techniques are employed to further classify the events and eventually discriminate between signal and background. The results are characterised by an observed t t ¯ H signal strength relative to the standard model cross section, ? = ?/? SM , under the assumption of a Higgs boson mass of 125 GeV. A combined fit of multivariate discriminant distributions in all categories results in an observed (expected) upper limit on ? of 1.5 (0.9) at 95% confidence level, and a best fit value of 0.72 ± 0.24(stat) ± 0.38(syst), corresponding to an observed (expected) signal significance of 1.6 (2.2) standard deviations above the background-only hypothesis.[Figure not available: see fulltext.]. © 2019, The Author(s).en_US
dc.description.sponsorship30820817; National Science Foundation, NSF; U.S. Department of Energy, USDOE; Alfred P. Sloan Foundation, APSF; Welch Foundation: C-1845; Alexander von Humboldt-Stiftung, AvH; Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS); Qatar National Research Fund, QNRF; Ministry of Education and Science; Secretaría de Educación Pública, SEP; Türkiye Atom Enerjisi Kurumu, TAEK; Weston Havens Foundation; CERN; Thailand Center of Excellence in Physics; Institute for the Promotion of Teaching Science and Technology, IPST; Kanton Zürich; Science and Technology Facilities Council, STFC: ST/N000242/1; European Commission, EC; European Research Council, ERC; National Research Foundation, NRF; Department of Science and Technology, Ministry of Science and Technology, India, ??????; Council of Scientific and Industrial Research, India, CSIR; Department of Atomic Energy, Government of India, DAE; Science Foundation Ireland, SFI; Helmholtz-Gemeinschaft, HGF; Deutsche Forschungsgemeinschaft, DFG; Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, SNF; Fundação de Amparo à Pesquisa do Estado de São Paulo, FAPESP; National Natural Science Foundation of China, NSFC; Research Promotion Foundation, ????; Ministerstvo Školství, Mláde?e a T?lov?chovy, MŠMT; Fundacja na rzecz Nauki Polskiej, FNP; Fundação para a Ciência e a Tecnologia, FCT; Russian Foundation for Basic Research, ????; Eesti Teadusagentuur, ETAg: IUT23-4, IUT23-6; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, CAPES; Academy of Finland, AKA; Bundesministerium für Bildung und Forschung, BMBF; Chinese Academy of Sciences, CAS; Austrian Science Fund, FWF; Fonds De La Recherche Scientifique - FNRS, FNRS; Russian Academy of Sciences, ???; Ministry of Education, MOE; Belgian Federal Science Policy Office, BELSPO; Chulalongkorn University, CU; Eidgenössische Technische Hochschule Zürich, ETH; Opetus- ja Kulttuuriministeriö; Fonds Wetenschappelijk Onderzoek, FWO; Agentschap voor Innovatie door Wetenschap en Technologie, IWT; Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture, FRIA; Consejo Nacional de Ciencia y Tecnología, CONACYT; Ministry of Education and Science of the Russian Federation, Minobrnauka; General Secretariat for Research and Technology, GSRT; Haridus- ja Teadusministeerium, HM; Ministry of Business, Innovation and Employment, MBIE; Conselho Nacional de Desenvolvimento Científico e Tecnológico, CNPq; Ministry of Science, ICT and Future Planning, MSIP; Ministry of Science and Technology, MOST; Joint Institute for Nuclear Research, JINR; Magyar Tudományos Akadémia, MTA; Instituto Nazionale di Fisica Nucleare, INFN; A.G. Leventis Foundation; National Science and Technology Development Agency, ????; Paul Scherrer Institut, PSI; Narodowe Centrum Nauki, NCN: 2012/07/E/ST2/01406, 2014/13/B/ST2/02543, 2014/14/M/ST2/00428, 2014/15/B/ST2/03998, 2015/19/B/ST2/02861; Universiti Malaya, UM; Türkiye Bilimsel ve Teknolojik Araştirma Kurumu, TÜBITAK; Hrvatska Zaklada za Znanost, HRZZ; Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja, MPNTR; Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, FAPERJ; Ministry of Science and Technology, Taiwan, MOST; National Academy of Sciences of Ukraine, NASU; Centre National de la Recherche Scientifique, CNRS; Universidad Autónoma de San Luis Potosí, UASLP; Ministry of Education and Science, MES; Benemérita Universidad Autónoma de Puebla, BUAP; Universität Zürich, UZH; Commissariat à l'Énergie Atomique et aux Énergies Alternatives, CEA; Ministarstvo Znanosti, Obrazovanja i Sporta, MZOS; Horizon 2020: 675440; Lietuvos Moksl? Akademija; European Regional Development Fund, ERDF; Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, CINVESTAV; Pakistan Atomic Energy Commission, PAEC; Institut National de Physique Nucléaire et de Physique des Particules, IN2P3; Nemzeti Kutatási, Fejlesztési és Innovaciós Alap, NKFIA: 123842, 123959, 124845, 124850, 125105; Federal Agency of Atomic Energy of the Russian Federation; Sociedad Española de Reumatología, SER; Board of the Swiss Federal Institutes of Technology; Laboratorio Nacional de Supercómputo del Sureste de Mexico, LNSen_US
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 centres and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. 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, 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 Nucléaire et de Physique des Particules / CNRS, and Commissariat à l’Énergie Atomique et aux Énergies Alternatives / CEA, France; the Bundesministerium für 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 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 Educationen_US
dc.description.sponsorshipOpen Access, Copyright CERN, for the benefit of the CMS Collaboration. Article funded by SCOAP3.en_US
dc.description.sponsorshipand the National Science Centre, Poland; the Fundacão para a Ciência 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 and the Russian Foundation for Basic Research; the Ministry of Education, Science and Technological Development of Serbia; the Secretaría de Estado de Investigación, Desarrollo e Innovación, Programa Consolider-Ingenio 2010, Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016, Plan de Ciencia, Tecnología e Innovación 2013-2017 del Principado de Asturias and Fondo Europeo de Desarrollo Regional, Spain; 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 Fundamental Researches, Ukraine; the Science and Technology Facilities Council, U.K.; the US Department of Energy, and the US National Science Foundation.en_US
dc.identifier.doi10.1007/JHEP03(2019)026
dc.identifier.issn1126-6708
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-85062644157en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.urihttps://doi.org/10.1007/JHEP03(2019)026
dc.identifier.urihttps://hdl.handle.net/20.500.12662/3005
dc.identifier.volume2019en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringer Verlagen_US
dc.relation.ispartofJournal of High Energy Physicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectHadron-Hadron scattering (experiments)en_US
dc.subjectHiggs physicsen_US
dc.subjectTop physicsen_US
dc.titleSearch for t t ¯ H production in the H ? b b ¯ decay channel with leptonic t t ¯ decays in proton-proton collisions at ?s=13 TeVen_US
dc.typeArticleen_US

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