Search for a W ' boson decaying to a tau lepton and a neutrino in proton-proton collisions at root s=13 TeV
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) ; FAPERGS (Brazil) ; Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) ; MES (Bulgaria) ; MOST (China) ; NSFC (China) ; COLCIENCIAS (Colombia) ; CSF (Croatia) ; SENESCYT (Ecuador) ; MoER (Estonia) ; ERDF (Estonia) ; Academy of Finland (Finland) ; MEC (Finland) ; CEA (France) ; CNRS/IN2P3 (France) ; BMBF ; DFG ; HGF (Germany) ; GSRT (Greece) ; NKFIA (Hungary) ; DAE ; DST ; IPM ; SFI (Ireland) ; INFN (Italy) ; NRF (Republic of Korea) ; MES (Latvia) ; MOE and UM (Malaysia) ; BUAP ; CONACYT ; UASLP-FAI (Mexico) ; MSHE ; FCT (Portugal) ; JINR (Dubna) ; RFBR ; MESTD (Serbia) ; SEIDI ; FEDER (Spain) ; Swiss Funding Agencies (Switzerland) ; NSTDA (Thailand) ; TUBITAKand TAEK ; NASU ; DOE ; NSF ; Marie-Curie programme ; European Research Council ; Horizon 2020 Grant ; 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) ; FWO (Belgium) under the Excellence of Science - EOS ; Ministry of Education, Youth and Sports (MEYS) of the Czech Republic ; Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences ; Council of Science and Industrial Research, India ; HOMING PLUS programme of the Foundation for Polish Science ; European Union, Regional Development Fund ; National Science Centre(Poland) ; Sonata-bis ; National Priorities Research Program by Qatar National Research Fund ; Programa Severo Ochoa del Principado de Asturias ; Thalis and Aristeia programmes ; EU-ESF ; Greek NSRF ; Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University ; Welch Foundation ; Weston Havens Foundation (USA) ; Horizon 2020 Grant: 675440 ; FWO (Belgium) under the Excellence of Science - EOS: 30820817 ; Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences: 123842 ; Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences: 123959 ; Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences: 124845 ; Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences: 124850 ; Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences: 125105 ; National Science Centre(Poland): Harmonia 2014/14/M/ST2/00428 ; National Science Centre(Poland): 2014/13/B/ST2/02543 ; National Science Centre(Poland): 2014/15/B/ST2/03998 ; National Science Centre(Poland): 2015/19/B/ST2/02861 ; Sonata-bis: 2012/07/E/ST2/01406 ; National Priorities Research Program by Qatar National Research Fund: MDM-2015-0509 ; Welch Foundation: C-1845 ; A search for a new high-mass resonance decaying to a tau lepton and a neutrino is reported. The analysis uses proton-proton collision data collected by the CMS experiment at the LHC at root s= 13 TeV, corresponding to an integrated luminosity of 35.9 fb(-1). The search utilizes hadronically decaying tau leptons. No excess in the event yield is observed at high transverse masses of the tau and missing transverse momentum. An interpretation of results within the sequential standard model excludes W' boson masses below 4.0 TeV at 95% confidence level. Existing limits are also improved on models in which the W' boson decays preferentially to fermions of the third generation. Heavy W' bosons with masses less than 1.7-3.9 TeV, depending on the coupling in the non-universal G(221) model, are excluded at 95% confidence level. These are the most stringent limits on this model to date. (C) 2019 The Author(s). Published by Elsevier B.V.