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Study of the spin and parity of the Higgs boson in diboson decays with the ATLAS detector
ATLAS Collaboration
2015
发表期刊EUROPEAN PHYSICAL JOURNAL C
卷号75期号:10页码:476
摘要Studies of the spin, parity and tensor couplings of the Higgs boson in the H -> ZZ* -> 4l, H -> WW* -> e nu mu nu and H -> gamma gamma decay processes at the LHC are presented. The investigations are based on 25 fb(-1) of pp collision data collected by the ATLAS experiment at root s = 7 TeV and root s = 8 TeV. The Standard Model (SM) Higgs boson hypothesis, corresponding to the quantum numbers J (P) = 0(+), 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 H -> ZZ* -> 4l and H -> WW* -> e nu mu nu. 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.
文章类型Article
学科领域Physics
DOI10.1140/epjc/s10052-015-3685-1
收录类别SCI
WOS类目Physics, Particles & Fields
WOS记录号WOS:000366310400001
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被引频次:25[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/229029
专题实验物理中心
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ATLAS Collaboration. Study of the spin and parity of the Higgs boson in diboson decays with the ATLAS detector[J]. EUROPEAN PHYSICAL JOURNAL C,2015,75(10):476.
APA ATLAS Collaboration.(2015).Study of the spin and parity of the Higgs boson in diboson decays with the ATLAS detector.EUROPEAN PHYSICAL JOURNAL C,75(10),476.
MLA ATLAS Collaboration."Study of the spin and parity of the Higgs boson in diboson decays with the ATLAS detector".EUROPEAN PHYSICAL JOURNAL C 75.10(2015):476.
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