Study of the spin and parity of the Higgs boson in diboson decays with the ATLAS detector

	Study of the spin and parity of the Higgs boson in diboson decays with the ATLAS detector
	ATLAS Collaboration
刊名	EUROPEAN PHYSICAL JOURNAL C
	2015
卷号	75 期号:10 页码:476
英文摘要	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.
学科主题	Physics
类目[WOS]	Physics, Particles & Fields
收录类别	SCI
WOS记录号	WOS:000366310400001
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/229029]
专题	高能物理研究所_实验物理中心
推荐引用方式 GB/T 7714	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.