Abstract
Results are reported from a search for non-standard-model Higgs boson decays to pairs of new light bosons, each of which decays into the µ+µ- final state. The new bosons may be produced either promptly or via a decay chain. The data set corresponds to an integrated luminosity of 5.3 fb-1 of proton-proton collisions at s=7 TeV, recorded by the CMS experiment at the LHC in 2011. Such Higgs boson decays are predicted in several scenarios of new physics, including supersymmetric models with extended Higgs sectors or hidden valleys. Thus, the results of the search are relevant for establishing whether the new particle observed in Higgs boson searches at the LHC has the properties expected for a standard model Higgs boson. No excess of events is observed with respect to the yields expected from standard model processes. A model-independent upper limit of 0.86±0.06 fb on the product of the cross section times branching fraction times acceptance is obtained. The results, which are applicable to a broad spectrum of new physics scenarios, are compared with the predictions of two benchmark models as functions of a Higgs boson mass larger than 86 GeV/c2 and of a new light boson mass within the range 0.25-3.55 GeV/c2. © 2013 CERN.
California Earthquake Authority Serbia 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 Marketing Science Institute Pakistan Atomic Energy Commission: Pakistan Consejo Nacional de Ciencia y Tecnología Institute for Research in Fundamental Sciences Foundation for Promotion of Material Science and Technology of Japan Hispanics in Philanthropy California Department of Fish and Game National Research Foundation Canadian Mathematical Society U.S. Department of Energy Academy of Finland Coordenação de Aperfeiçoamento de Pessoal de Nível Superior Ministerio de Educación y Cultura Türkiye Atom Enerjisi Kurumu NSC, Taipei Research Promotion Foundation: Cyprus National Science Foundation Science and Technology Facilities Council Human Growth Foundation Croatia Fundação de Amparo à Pesquisa do Estado de São Paulo Secretaría de Educación Pública Western Carolina University Fonds De La Recherche Scientifique - FNRS Bundesministerium für Bildung und Forschung National Natural Science Foundation of China Ministerio de Ciencia e Innovación, MICINN Instituto Nazionale di Fisica Nucleare Hungarian Scientific Research Fund Department of Atomic Energy, Government of India Department of Science and Technology, Government of Rajasthan Conselho Nacional de Desenvolvimento Científico e Tecnológico, CNPq Canadian Anesthesiologists' Society Departamento Administrativo de Ciencia, Tecnología e Innovación, COLCIENCIAS Nemzeti Kutatási és Technológiai Hivatal, NKTH: Hungary CERN General Secretariat for Research and Technology, GSRT Fonds Wetenschappelijk Onderzoek Santa Fe Institute Ministry of Education and Science Louisiana Academy of Sciences
We would like to thank Joshua Ruderman (LBNL and University of California at Berkeley) for his guidance with the theoretically motivated benchmark samples of dark SUSY and useful discussions. We wish to congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staff at CERN and other CMS institutes, and acknowledge support from: FMSR (Austria); FNRS and FWO (Belgium); CNPq , CAPES , FAPERJ , and FAPESP (Brazil); MES (Bulgaria); CERN ; CAS , MoST , and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences and NICPB (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 (Korea); LAS (Lithuania); CINVESTAV , CONACYT , SEP , and UASLP-FAI (Mexico); MSI (New Zealand); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST and MAE (Russia); MSTD (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA). --
