Article
Study of the spin and parity of the Higgs boson in diboson decays with the ATLAS detector
European Physical Journal C, Springer Nature, ISSN 1434-6044
Volume 75, 10, 2015
DOI:10.1140/epjc/s10052-015-3685-1, Dimensions: pub.1001960251, PMC: PMC4596194, PMID: 26472935,
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Description
Studies of the spin, parity and tensor couplings of the Higgs boson in the [Formula: see text], [Formula: see text] and [Formula: see text] decay processes at the LHC are presented. The investigations are based on [Formula: see text] of pp collision data collected by the ATLAS experiment at [Formula: see text] TeV and [Formula: see text] TeV. The Standard Model (SM) Higgs boson hypothesis, corresponding to the quantum numbers [Formula: see text], is tested against several alternative spin scenarios, including non-SM spin-0 and spin-2 models with universal and non-universal couplings to fermions and vector bosons. All tested alternative models are excluded in favour of the SM Higgs boson hypothesis at more than 99.9 % confidence level. Using the [Formula: see text] and [Formula: see text] decays, the tensor structure of the interaction between the spin-0 boson and the SM vector bosons is also investigated. The observed distributions of variables sensitive to the non-SM tensor couplings are compatible with the SM predictions and constraints on the non-SM couplings are derived.
Funders
- Ministry of Science and Technology of the People's Republic of China
- Chinese Academy of Sciences
- Japan Society for the Promotion of Science
- Slovenian Research Agency
- Science and Technology Facilities Council
- Ministry of Education, Science and Sport
- Israel Science Foundation
- German Research Foundation
- National Natural Science Foundation of China
- Ministry of Education Youth and Sports
- Leverhulme Trust
- Comisión Nacional de Investigación Científica y Tecnológica
- Agencia Nacional de Promoción Científica y Tecnológica
- French National Centre for Scientific Research
- European Research Council
- Atomic Energy and Alternative Energies Commission
- São Paulo Research Foundation
- Foundation for Science and Technology
- Alexander von Humboldt Foundation
- Swiss National Science Foundation
- Ministry of Economy, Industry and Competitiveness
- Federal Ministry of Education and Research
- Royal Society
- Brookhaven National Laboratory
- European Commission
- National Council for Scientific and Technological Development
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Times Cited: 79
Field Citation Ratio (FCR): 32.34
Relative Citation ratio (RCR): 1.14