期刊
PHYSICS LETTERS B
卷 717, 期 1-3, 页码 173-181出版社
ELSEVIER
DOI: 10.1016/j.physletb.2012.08.051
关键词
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资金
- U.S. Department of Energy
- National Science Foundation
- Italian Istituto Nazionale di Fisica Nucleare
- Ministry of Education, Culture, Sports, Science and Technology of Japan
- Natural Sciences and Engineering Research Council of Canada
- National Science Council of the Republic of China
- Swiss National Science Foundation
- A.P. Sloan Foundation
- Bundesministerium fur Bildung und Forschung, Germany
- Korean World Class University Program
- National Research Foundation of Korea
- Science and Technology Facilities Council
- Royal Society, UK
- Russian Foundation for Basic Research
- Ministerio de Ciencia e Innovacion
- Programa Consolider-Ingenio, Spain
- Slovak RD Agency
- Academy of Finland
- Australian Research Council (ARC)
- STFC [PP/E003699/2, ST/H001026/1, ST/H001069/2, ST/H001026/2, PP/E003699/1] Funding Source: UKRI
- ICREA Funding Source: Custom
- Science and Technology Facilities Council [ST/H001026/2, ST/M001474/1, PP/E003699/2, ST/K001418/1, PP/E003699/1, ST/H001069/2, ST/H001026/1] Funding Source: researchfish
A search for a narrow Higgs boson resonance in the diphoton mass spectrum is presented based on data corresponding to 10 fb(-1) of integrated luminosity collected by the CDF experiment from proton antiproton collisions at root s = 1.96 TeV. To increase the sensitivity of the search, we employ a multivariate discriminant technique for the first time in this channel at CDF. No evidence of signal is observed, and upper limits are set on the cross section times branching ratio of the resonant state as a function of the Higgs boson mass. The limits are interpreted in the context of the standard model with an expected (observed) limit on the cross section times branching ratio of 9.9 (17.0) times the standard model prediction at the 95% credibility level for a Higgs boson mass of 125 GeV/c(2). Moreover, a Higgs boson with suppressed couplings to fermions is excluded for masses below 114 GeV/c(2) at the 95% credibility level. (C) 2012 Elsevier B.V. All rights reserved.
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