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No. of bitstreams: 0 Previous issue date: 2019-06-10 BMWFW (Austria) FWF (Austria) FNRS (Belgium) FWO (Belgium) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) MES (Bulgaria) CERN CAS (China) MOST (China) NSFC (China) COLCIENCIAS (Colombia) MSES (Croatia) CSF (Croatia) RPF (Cyprus) SENESCYT (Ecuador) MoER (Estonia) ERC IUT (Estonia) ERDF (Estonia) Academy of Finland (Finland) MEC (Finland) HIP (Finland) CEA (France) CNRS/IN2P3 (France) BMBF (Germany) DFG (Germany) HGF (Germany) GSRT (Greece) NKFIA (Hungary) DAE (India) DST (India) IPM (Iran) SFI (Ireland) INFN (Italy) MSIP (Republic of Korea) NRF (Republic of Korea) LAS (Lithuania) MOE (Malaysia) UM (Malaysia) BUAP (Mexico) CINVESTAV (Mexico) CONACYT (Mexico) LNS (Mexico) SEP (Mexico) UASLP-FAI (Mexico) MBIE (New Zealand) PAEC (Pakistan) MSHE (Poland) NSC (Poland) FCT (Portugal) JINR (Dubna) MON (Russia) ROSATOM (Russia) RAS (Russia) RFBR (Russia) MESTD (Serbia) SEIDI (Spain) CPAN (Spain) PCTI (Spain) FEDER (Spain) Swiss Funding Agencies (Switzerland) MST (Taipei) ThEPCenter (Thailand) IPST (Thailand) STAR (Thailand) NSTDA (Thailand) TUBITAK (Turkey) TAEK (Turkey) NASU (Ukraine) SFFR (Ukraine) STFC (United Kingdom) DOE (USA) NSF (USA) Marie-Curie programme (European Union) European Research Council (European Union) Horizon 2020 Grant (European Union) 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 (Belgium) under the Excellence of Science-EOS-be. h project FWO (Belgium) under the Excellence of Science-EOS-be. h Ministry of Education, Youth and Sports (MEYS) of the Czech Republic Lendulet (Momentum) Programme of the Hungarian Academy of Sciences Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences New National Excellence Program UNKP Council of Science and Industrial Research, India HOMING PLUS programme of the Foundation for Polish Science European Union, Regional Development Fund Mobility Plus programme of the Ministry of Science and Higher Education National Science Center (Poland) National Priorities Research Program by Qatar National Research Fund Programa Estatal de Fomento de la Investigacion Cientifica y Tecnica de Excelencia Maria de Maeztu Programa Severo Ochoa del Principado de Asturias Thalis programme - EU-ESF Aristeia programme - EU-ESF Greek NSRF A search for invisible decays of a Higgs boson is performed using proton-proton collision data collected with the CMS detector at the LHC in 2016 at a center-of-mass energy root s = 13 TeV, corresponding to an integrated luminosity of 35.9fb(-1). The search targets the production of a Higgs boson via vector boson fusion. The data are found to be in agreement with the background contributions from standard model processes. An observed (expected) upper limit of 0.33(0.25), at 95% confidence level, is placed on the branching fraction of the Higgs boson decay to invisible particles, assuming standard model production rates and a Higgs boson mass of 125.09GeV. Results from a combination of this analysis and other direct searches for invisible decays of the Higgs boson, performed using data collected at root s = 7, 8, and 13 TeV, are presented. An observed (expected) upper limit of 0.19(0.15), at 95% confidence level, is set on the branching fraction of invisible decays of the Higgs boson. The combined limit represents the most stringent bound on the invisible branching fraction of the Higgs boson reported to date. This result is also interpreted in the context of Higgs-portal dark matter models, in which upper bounds are placed on the spin-independent dark-matter-nucleon scattering cross section. (C) 2019 The Author(s). Published by Elsevier B.V. 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(European Union): 675440 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: 30820817 NKFIA (Hungary): 123842 NKFIA (Hungary): 123959 NKFIA (Hungary): 124845 NKFIA (Hungary): 124850 NKFIA (Hungary): 125105 National Science Center (Poland): Harmonia 2014/14/M/ST2/00428 National Science Center (Poland): Opus 2014/13/B/ST2/02543 National Science Center (Poland): 2014/15/B/ST2/03998 National Science Center (Poland): 2015/19/B/ST2/02861 National Science Center (Poland): Sonata-bis 2012/07/E/ST2/01406 Programa Estatal de Fomento de la Investigacion Cientifica y Tecnica de Excelencia Maria de Maeztu: MDM-2015-0509 Welch Foundation: C-1845