Journal article
Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol.716(1), pp.30-61
09/17/2012
DOI: 10.1016/j.physletb.2012.08.021
Appears in Diamond Open Access
Abstract
Results are presented from searches for the standard model Higgs boson in proton-proton collisions at s=7 and 8 TeV in the Compact Muon Solenoid experiment at the LHC, using data samples corresponding to integrated luminosities of up to 5.1 fb-1 at 7 TeV and 5.3 fb-1 at 8 TeV. The search is performed in five decay modes: γγ, ZZ, W+W-, τ+τ-, and bb-. An excess of events is observed above the expected background, with a local significance of 5.0 standard deviations, at a mass near 125 GeV, signalling the production of a new particle. The expected significance for a standard model Higgs boson of that mass is 5.8 standard deviations. The excess is most significant in the two decay modes with the best mass resolution, γγ and ZZ; a fit to these signals gives a mass of 125.3±0.4(stat.)±0.5(syst.) GeV. The decay to two photons indicates that the new particle is a boson with spin different from one. © 2012 CERN.
Details
- Title: Subtitle
- Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
- Creators
- CMS Collaboration
- Contributors
- Yasar Onel (Contributor) - University of IowaJane M Nachtman (Contributor) - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol.716(1), pp.30-61
- DOI
- 10.1016/j.physletb.2012.08.021
- ISSN
- 0370-2693
- Publisher
- Elsevier
- Grant note
- ST/H00081X/2; SF0690030s09; National Science Foundation, NSF: 0969704, 1066578, 1100862; U.S. Department of Energy, USDOE; Alfred P. Sloan Foundation; Hispanics in Philanthropy, HIP; Alexander von Humboldt-Stiftung; Western Carolina University, WCU; Compagnia di San Paolo; Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS); Secretaría de Educación Pública, SEP; Türkiye Atom Enerjisi Kurumu, TAEK; Louisiana Academy of Sciences, LAS; CERN; Science and Technology Facilities Council, STFC: GRIDPP, PP/E002722/1, ST/F006748/1, ST/F007094/1, ST/F007434/1, ST/G502347/1, ST/G502412/1, ST/H000925/1, ST/I000410/1, ST/I002200/1, ST/I002839/1, ST/I005912/1, ST/I505572/1, ST/I505580/1, ST/J004820/1, ST/J004901/1, ST/J005614/1, ST/J005665/1, ST/K000616/1, ST/K001256/1, ST/K001604/1, ST/L001225/1; European Commission, EC; European Research Council, ERC; Department of Science and Technology, Ministry of Science and Technology, India, डीएसटी; Council of Scientific and Industrial Research, India, CSIR; Department of Atomic Energy, Government of India, पऊवि; Ministry of Science and Innovation, New Zealand, MSI; Science Foundation Ireland, SFI; Helmholtz-Gemeinschaft, HGF; Deutsche Forschungsgemeinschaft, DFG; Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, SNF: 123501, 128079, 134939, 138111; Fundação de Amparo à Pesquisa do Estado de São Paulo, FAPESP; National Natural Science Foundation of China, NSFC; Research Promotion Foundation, ΙδΕΚ; Ministerstvo Školství, Mládeže a Tělovýchovy, MŠMT; National Science Council, NSC; Fundacja na rzecz Nauki Polskiej, FNP; Fundação para a Ciência e a Tecnologia, FCT; Russian Foundation for Basic Research, РФФИ; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, CAPES; Academy of Finland; Bundesministerium für Bildung und Forschung, BMBF; Chinese Academy of Sciences, CAS; Austrian Science Fund, FWF; Fonds De La Recherche Scientifique - FNRS, FNRS; Russian Academy of Sciences, РАН; Belgian Federal Science Policy Office, BELSPO; Fonds Wetenschappelijk Onderzoek, FWO; Agentschap voor Innovatie door Wetenschap en Technologie, IWT; Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture, FRIA; Consejo Nacional de Ciencia y Tecnología, CONACYT; Ministerio de Economía y Competitividad, MINECO; General Secretariat for Research and Technology, GSRT; Hungarian Scientific Research Fund, OTKA; Conselho Nacional de Desenvolvimento Científico e Tecnológico, CNPq; National Research Foundation of Korea, NRF; Joint Institute for Nuclear Research, JINR; Nemzeti Kutatási és Technológiai Hivatal, NKTH; Instituto Nazionale di Fisica Nucleare, INFN; A.G. Leventis Foundation; Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, FAPERJ; Ministry of Science and Technology, Taiwan, MOST; National Academy of Sciences of Ukraine, NASU; Centre National de la Recherche Scientifique, CNRS; Ministry of Education and Science, MES; Institute for Research in Fundamental Sciences, IPM; Commissariat à l'Énergie Atomique et aux Énergies Alternatives, CEA; Secretaría de Estado de Investigación, Desarrollo e Innovación, SEIDI; Bundesministerium für Wissenschaft und Forschung, BMWF; European Regional Development Fund, FEDER; State Atomic Energy Corporation ROSATOM, ROSATOM; Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, CINVESTAV; Pakistan Atomic Energy Commission, PAEC; Institut National de Physique Nucléaire et de Physique des Particules, IN2P3
- Language
- English
- Date published
- 09/17/2012
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984444761702771
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