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Search for exotic decays of a Higgs boson into undetectable particles and one or more photons

  • CMS Collaboration
  • CERN
  • A. Alikhanian Yerevan Institute of Physics
  • Austrian Academy of Sciences
  • TU Wien
  • Belarusian State University
  • University of Antwerp
  • German Electron Synchrotron
  • Vrije Universiteit Brussel
  • Université libre de Bruxelles
  • Peking University
  • Ghent University
  • Université catholique de Louvain
  • Université de Strasbourg
  • National Institute of Chemical Physics and Biophysics, Tallinn
  • Lomonosov Moscow State University
  • Universite de Mons
  • Centro Brasileiro de Pesquisas Físicas
  • Universidade do Estado do Rio de Janeiro
  • Universidade Estadual de Campinas
  • Universidade Estadual Paulista Júlio de Mesquita Filho
  • Universidade Federal do ABC
  • CNRS
  • Bulgarian Academy of Sciences
  • Sofia University St. Kliment Ohridski
  • CAS - Institute of High Energy Physics
  • Institut Polytechnique de Paris
  • Universidad de los Andes Colombia
  • University of Split
  • Ruder Boskovic Institute
  • University of Cyprus
  • Charles University
  • Joint Institute for Nuclear Research
  • Academy of Scientific Research and Technology
  • Zewail City of Science and Technology
  • Helwan University
  • The British University in Egypt
  • Ain Shams University
  • University of Helsinki
  • Helsinki Institute of Physics
  • Lappeenranta-Lahti University of Technology
  • Commissariat à l’énergie atomique et aux énergies alternatives
  • Université de Haute-Alsace
  • CNRS/IN2P3
  • Universite Claude Bernard Lyon 1
  • Georgian Technical University
  • Ivane Javakhishvili Tbilisi State University
  • RWTH Aachen University
  • Brandenburg University of Technology
  • University of Hamburg
  • Karlsruhe Institute of Technology
  • Demokritos National Centre for Scientific Research
  • National and Kapodistrian University of Athens
  • University of Ioannina
  • Wigner Research Centre for Physics
  • Institute for Nuclear Research
  • Eotvos Lorand University
  • University of Debrecen
  • National Institute of Science Education and Research
  • Panjab University
  • University of Delhi
  • Saha Institute of Nuclear Physics
  • Homi Bhabha National Institute
  • Tata Institute of Fundamental Research
  • Visva-Bharati University
  • King Abdulaziz University
  • University of Ruhuna
  • Indian Institute of Science Education and Research Pune
  • Institute for Research for Fundamental Sciences
  • Isfahan University of Technology
  • University of Tehran
  • Islamic Azad University
  • University College Dublin
  • National Institute for Nuclear Physics
  • University of Bari
  • Polytechnic University of Bari
  • University of Bologna
  • University of Florence
  • University of Genoa
  • University of Milan - Bicocca
  • University of Basilicata
  • Università G. Marconi
  • University of Naples Federico II
  • University of Pavia
  • University of Perugia
  • University of Siena
  • Scuola Normale Superiore di Pisa
  • University of Pisa
  • Purdue University
  • University of Rome La Sapienza
  • University of Turin
  • University of Eastern Piedmont
  • University of Trieste
  • Kangwon National University
  • Kyungpook National University
  • Jeonbuk National University
  • Chonnam National University
  • Korea University
  • Seoul National University
  • University of Seoul
  • Sungkyunkwan University
  • Vilnius University
  • University of Malaya
  • International Islamic University Malaysia
  • Malaysian Nuclear Agency
  • Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
  • Consejo Nacional de Ciencia y Tecnologia Mexico
  • Universidad Iberoamericana (UIA)
  • Benemerita Universidad Autonoma de Puebla
  • Universidad Autonoma de San Luis Potosi
  • The University of Auckland
  • University of Canterbury
  • Quaid-I-Azam University
  • National Centre for Nuclear Research
  • University of Warsaw
  • Laboratório de Instrumentação e Física Experimental de Partículas
  • RAS - Institute for Nuclear Research
  • RAS - Saint Petersburg Nuclear Physics Institute
  • Peter the Great St. Petersburg Polytechnic University
  • Alikhanov Institute for Theoretical and Experimental Physics
  • Moscow Engineering Physics Institute
  • RAS - P.N. Lebedev Physics Institute
  • California Institute of Technology
  • Institute for High Energy Physics
  • University of Belgrade
  • CIEMAT
  • Universidad Autónoma de Madrid
  • University of Oviedo
  • Universidad de Cantabria
  • National Technical University of Athens
  • Warsaw University of Technology
  • Paul Scherrer Institute
  • Swiss Federal Institute of Technology Zurich
  • University of Zurich
  • University of Bern
  • National Central University
  • National Taiwan University
  • Chulalongkorn University
  • Cukurova University
  • Adiyaman University
  • Mersin University
  • Cag University
  • Piri Reis University
  • Gaziosmanpasa University
  • Middle East Technical University
  • Ozyegin University
  • Izmir Institute of Technology
  • Bogazici University
  • Mimar Sinan Guzel Sanatlar University
  • Marmara University
  • Kafkas University
  • Yildiz Technical University
  • Istanbul Technical University
  • Hacettepe University
  • NASU - Institute for Single Crystals
  • NASU - Kharkov Institute of Physics and Technology
  • University of Bristol
  • Rutherford Appleton Laboratory
  • University of Southampton
  • Imperial College London
  • Instituto de Astrofísica de Canarias
  • Brunel University London
  • Baylor University
  • University of Alabama
  • Boston University
  • Brown University
  • University of California at Davis
  • University of California at Los Angeles
  • University of California at Riverside
  • University of California at San Diego
  • Utah Valley University
  • University of California at Santa Barbara
  • Carnegie Mellon University
  • University of Colorado Boulder
  • Cornell University
  • Fermi National Accelerator Laboratory
  • University of Florida
  • Florida International University
  • Florida State University
  • Florida Institute of Technology
  • University of Illinois at Chicago
  • University of Iowa
  • Argonne National Laboratory
  • Erzincan University
  • Johns Hopkins University
  • University of Kansas
  • Kansas State University
  • Lawrence Livermore National Laboratory
  • University of Maryland, College Park
  • Massachusetts Institute of Technology
  • University of Minnesota Twin Cities
  • University of Mississippi
  • University of Nebraska-Lincoln
  • SUNY Buffalo
  • Northeastern University
  • Northwestern University
  • University of Notre Dame
  • Ohio State University
  • Princeton University
  • Purdue University Northwest
  • Rice University
  • University of Rochester
  • Rockefeller University
  • Rutgers - The State University of New Jersey, New Brunswick
  • University of Tennessee, Knoxville
  • Texas A&M University
  • Texas A&M University at Qatar
  • Texas Tech University
  • Vanderbilt University
  • University of Virginia
  • Wayne State University
  • University of Wisconsin-Madison

Araştırma sonucu: Dergiye katkıMakalebilirkişi

17 Atıf (Scopus)

Özet

A search is presented for exotic decays of a Higgs boson into undetectable particles and one or two isolated photons in pp collisions at a center-of-mass energy of 8 TeV. The data correspond to an integrated luminosity of up to 19.4 fb−1 collected with the CMS detector at the LHC. Higgs bosons produced in gluon–gluon fusion and in association with a Z boson are investigated, using models in which the Higgs boson decays into a gravitino and a neutralino or a pair of neutralinos, followed by the decay of the neutralino to a gravitino and a photon. The selected events are consistent with the background-only hypothesis, and limits are placed on the product of cross sections and branching fractions. Assuming a standard model Higgs boson production cross section, a 95% confidence level upper limit is set on the branching fraction of a 125 GeV Higgs boson decaying into undetectable particles and one or two isolated photons as a function of the neutralino mass. For this class of models and neutralino masses from 1 to 120 GeV an upper limit in the range of 7 to 13% is obtained. Further results are given as a function of the neutralino lifetime, and also for a range of Higgs boson masses.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)363-388
Sayfa sayısı26
DergiPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Hacim753
DOI'lar
Yayın durumuYayınlandı - 10 Şub 2016
Harici olarak yayınlandıEvet

Bibliyografik not

Publisher Copyright:
© 2015 CERN for the benefit of the CMS Collaboration

Finansman

Individuals have received support from the Marie-Curie program and the European Research Council and EPLANET (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 the Czech Republic; the Council of Science and Industrial Research, India; the HOMING PLUS program of the Foundation for Polish Science, cofinanced from European Union, Regional Development Fund; the Compagnia di San Paolo (Torino); the Consorzio per la Fisica (Trieste); MIUR project 20108T4XTM (Italy); the Thalis and Aristeia programs cofinanced by EU-ESF and the Greek NSRF; the National Priorities Research Program by Qatar National Research Fund; and Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University (Thailand). 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: BMWFW and FWF (Austria); F.R.S. - FNRS and FWO (Belgium); CNPq , CAPES , FAPERJ , and FAPESP (Brazil); MES (Bulgaria); CERN ; CAS , MOST , and NSFC (China); COLCIENCIAS (Colombia); MSES and CSF (Croatia); RPF (Cyprus); MoER , ERC IUT and ERDF (Estonia); Academy of Finland , MEC , and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF , DFG , and HGF (Germany); GSRT (Greece); OTKA and NIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Republic of Korea); LAS (Lithuania); MOE and UM (Malaysia); CINVESTAV , CONACYT , SEP , and UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON , RosAtom , RAS and RFBR (Russia); MESTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter , IPST , STAR and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU and SFFR (Ukraine); STFC (United Kingdom); DOE and NSF (USA). Individuals have received support from the Marie-Curie program and the European Research Council and EPLANET (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 the Czech Republic; the Council of Science and Industrial Research , India; the HOMING PLUS program of the Foundation for Polish Science , cofinanced from European Union, Regional Development Fund; the Compagnia di San Paolo (Torino); the Consorzio per la Fisica (Trieste); MIUR project 20108T4XTM (Italy); the Thalis and Aristeia programs cofinanced by EU-ESF and the Greek NSRF ; the National Priorities Research Program by Qatar National Research Fund ; and Rachadapisek Sompot Fund for Postdoctoral Fellowship , Chulalongkorn University (Thailand).

FinansörlerFinansör numarası
CPAN
Consorzio per la Fisica
EU-ESF
MSES
MoER
STAR
National Science Foundation1151640, 1506168, 1206044, 1314131, 1306951, 1506130, 1211067, 1508869
National Institutes of Health
U.S. Department of Energy
Alfred P. Sloan Foundation
Hispanics in Philanthropy
Human Growth Foundation
Alexander von Humboldt-Stiftung
California Department of Fish and Wildlife
Ministry of Science and Technology
University of Minnesota
Compagnia di San Paolo
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
Children's Specialists Foundation
California Earthquake Authority
Qatar National Research Fund
Direktion für Entwicklung und Zusammenarbeit
Ministry of Education
Center for African Studies
Secretaría de Educación Pública
Türkiye Atom Enerjisi Kurumu
Seventh Framework Programme246806
Santa Fe Institute
Louisiana Academy of Sciences
Rochester Academy of Science
National Research Foundation
Missouri University of Science and Technology
Medical Engineering Centre, King’s College London
CERN
Thailand Center of Excellence in Physics
Cosmetic Surgery Foundation
Institute for the Promotion of Teaching Science and Technology
Ministerstwo Obrony Narodowej
Science and Technology Facilities CouncilST/L00609X/1, ST/N000250/1, ST/J004901/1, ST/K001256/1, ST/K003844/1, ST/J004871/1, GRIDPP, ST/J005479/1, ST/K001531/1, ST/M005356/1, ST/I005912/1, ST/J005665/1, ST/J50094X/1, ST/M004775/1, ST/K001639/1, ST/N000242/1
European Commission
European Research Council
National Stroke Foundation
Department of Science and Technology, Ministry of Science and Technology, India
Council of Scientific and Industrial Research, India
Ministry of Education - Singapore
Department of Atomic Energy, Government of India
Taighde Éireann - Research Ireland
Helmholtz-Gemeinschaft
Deutsche Forschungsgemeinschaft
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung153664
Fundação de Amparo à Pesquisa do Estado de São Paulo
National Natural Science Foundation of China
Research Promotion Foundation
Ministerstvo Školství, Mládeže a Tělovýchovy
National Science Council
Fundacja na rzecz Nauki Polskiej
Fundação para a Ciência e a Tecnologia
Russian Foundation for Basic Research
Eesti Teadusagentuur
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Academy of Finland
Bundesministerium für Bildung und Forschung
Chinese Academy of Sciences
Austrian Science Fund
Fonds De La Recherche Scientifique - FNRS
Russian Academy of Sciences
Belgian Federal Science Policy Office
Chulalongkorn University
Fonds Wetenschappelijk Onderzoek
Agentschap voor Innovatie door Wetenschap en Technologie
Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture
Consejo Nacional de Ciencia y Tecnología
Ministerio de Educación, Cultura y Deporte
Ministero dell’Istruzione, dell’Università e della Ricerca20108T4XTM
Bundesministerium für Wissenschaft, Forschung und Wirtschaft
General Secretariat for Research and Technology
Ministry of Business, Innovation and Employment
Hungarian Scientific Research Fund
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Ministry of Science, ICT and Future Planning
National Research Foundation of Korea
Joint Institute for Nuclear Research
Instituto Nazionale di Fisica Nucleare
Ministry of Science ICT and Future Planning
A.G. Leventis Foundation
National Science and Technology Development Agency
Universiti Malaya
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu
Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja
Ministerstwo Edukacji i Nauki
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
Ministry of Science and Technology, Taiwan
National Academy of Sciences of Ukraine
Centre National de la Recherche Scientifique
Universidad Autónoma de San Luis Potosí
Ministry of Education and Science
Institute for Research in Fundamental Sciences
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
Bundesministerium für Bildung und Frauen
Secretaría de Estado de Investigación, Desarrollo e Innovación
European Regional Development Fund
State Atomic Energy Corporation ROSATOM
Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional
Pakistan Atomic Energy Commission
State Fund for Fundamental Research of Ukraine
Department of Science and Technology, Government of West Bengal
Fundació Catalana de Trasplantament
Institut National de Physique Nucléaire et de Physique des Particules

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