Abstract
A search for a neutral Higgs boson decaying to a pair of b quarks, and produced in association with at least one additional b quark, is presented. Multijet final states with three jets identified as originating from b quarks, at least one of which may include a non-isolated muon, are studied. The data used in this analysis correspond to an integrated luminosity of 2.7–4.8 fb-1, collected by the CMS experiment in proton-proton collisions at the LHC at a center-of-mass energy of 7 TeV. This search is particularly sensitive to Higgs bosons in scenarios of the Minimal Supersymmetric Model (MSSM) with large values of tan ß. No excess over the predicted background from standard model processes is observed. Stringent upper limits on cross section times branching fraction are derived and interpreted as bounds in the MSSM tan ß and mA parameter-space. Observed 95% confidence level upper limits reach as low as tanß?18 for MA?100 GeV. © 2013 CERN
California Earthquake Authority Serbia European Regional Development Fund Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro Fuel Cell Technologies Program, FCT Joint Institute for Nuclear Research, JINR: Ukraine Marketing Science Institute Bundesministerium für Wissenschaft und Forschung, BMWF Pakistan Atomic Energy Commission: Pakistan Consejo Nacional de Ciencia y Tecnología National Science and Technology Development Agency: Thailand Institute for Research in Fundamental Sciences Fundacja na rzecz Nauki Polskiej Hispanics in Philanthropy Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture, FRIA Korea Research Council for Industrial Science and Technology, ISTK California Department of Fish and Game Compagnia di San Paolo Secretaría de Estado de Investigación, Desarrollo e Innovación National Research Foundation Canadian Mathematical Society A.G. Leventis Foundation U.S. Department of Energy Academy of Finland Coordenação de Aperfeiçoamento de Pessoal de Nível Superior Türkiye Atom Enerjisi Kurumu Ministerio de Educación y Cultura Taipei Research Promotion Foundation: Cyprus, SF0690030s09 National Science Foundation Science and Technology Facilities Council Human Growth Foundation Croatia Austrian Science Fund Fundação de Amparo à Pesquisa do Estado de São Paulo Secretaría de Educación Pública Western Carolina University Fonds De La Recherche Scientifique - FNRS National Academy of Sciences of Ukraine National Natural Science Foundation of China Bundesministerium für Bildung und Forschung Instituto Nazionale di Fisica Nucleare Hungarian Scientific Research Fund Department of Atomic Energy, Government of India Rochester Academy of Science Department of Science and Technology, Government of Rajasthan Conselho Nacional de Desenvolvimento Científico e Tecnológico, CNPq ??? ??? ??? ??? (???) Belgian Federal Science Policy Office Canadian Anesthesiologists' Society Agentschap voor Innovatie door Wetenschap en Technologie Alexander von Humboldt-Stiftung Departamento Administrativo de Ciencia, Tecnología e Innovación, COLCIENCIAS Nemzeti Kutatási és Technológiai Hivatal, NKTH: Hungary Ministerstvo Školství, Mládeze a Telovychovy, Not Available European Commission Ministerstvo Školství, Mládeze a Telovychovy, Not Available European Regional Development Fund CERN NSC General Secretariat for Research and Technology, GSRT Fonds Wetenschappelijk Onderzoek European Research Council Santa Fe Institute Louisiana Academy of Sciences A.P. Giannini Foundation
We 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. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMWF and FWF (Austria); FNRS and FWO (Belgium); CNPq , CAPES , FAPERJ , and FAPESP (Brazil); MEYS (Bulgaria); CERN ; CAS , MoST , and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); MoER , SF0690030s09 and ERDF (Estonia); Academy of Finland , MEC , and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF , DFG , and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Republic of Korea); LAS (Lithuania); CINVESTAV , CONACYT , SEP , and UASLP-FAI (Mexico); MSI (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MON , RosAtom , RAS and RFBR (Russia); MSTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); ThEPCenter , IPST and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (USA). Individuals have received support from the Marie-Curie programme and the European Research Council (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 à la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium) ; the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium) ; the Ministry of Education, Youth and Sports (MEYS) of Czech Republic; the Council of Science and Industrial Research , India; the Compagnia di San Paolo (Torino); and the HOMING PLUS programme of Foundation for Polish Science , cofinanced from European Union, Regional Development Fund. --