Cross section and Higgs mass measurement with Higgsstrahlung at the CEPC

doi:10.1088/1674-1137/41/2/023003

CORC > 高能物理研究所 > 中国科学院高能物理研究所 > 中国科学院高能物理研究所 > 人力资源处

	Cross section and Higgs mass measurement with Higgsstrahlung at the CEPC
	Chen ZX(陈振兴); Yang Y(杨迎); Ruan MQ(阮曼奇); Wang DY(王大勇); Li G(李刚); Jin S(金山); Chen, ZX; Yang, Y; Ruan, MQ; Wang, DY
刊名	CHINESE PHYSICS C中国物理. C
	2017
卷号	41 期号:2 页码:23003
关键词	CEPC Higgs mass cross section
ISSN号	1674-1137
DOI	10.1088/1674-1137/41/2/023003
文献子类	Article
英文摘要	The Circular Electron Positron Collider (CEPC) is a future Higgs factory proposed by the Chinese high energy physics community. It will operate at a center-of-mass energy of 240-250 GeV. The CEPC will accumulate an integrated luminosity of 5 ab(-1) over ten years of operation, producing one million Higgs bosons via the Higgsstrahlung and vector boson fusion processes. This sample allows a percent or even sub-percent level determination of the Higgs boson couplings. With GEANT4-based full simulation and a dedicated fast simulation tool, we have evaluated the statistical precisions of the Higgstrahlung cross section sigma(ZH) and the Higgs mass m(H) measurement at the CEPC in the Z -> mu(+) mu(-) channel. The statistical precision of sigma(ZH) (m(H)) measurement could reach 0.97% (6.9 MeV) in the model-independent analysis which uses only the information from Z boson decays. For the standard model Higgs boson, the mu precision could be improved to 5.4 MeV by including the information from Higgs decays. The impact of the TPC size on these measurements is investigated. In addition, we studied the prospect of measuring the Higgs boson decaying into invisible final states at the CEPC. With the Standard Model ZH production rate, the upper limit of B(H -> inv.) could reach 1.2% at 95% confidence level.
WOS关键词	ATLAS DETECTOR ; DARK-MATTER ; BOSON ; LHC ; COUPLINGS ; SEARCH
WOS研究方向	Physics
语种	英语
CSCD记录号	CSCD:5910181
WOS记录号	WOS:000396641300003
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/284267]
专题	中国科学院高能物理研究所_人力资源处高能物理研究所_实验物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Chen ZX,Yang Y,Ruan MQ,et al. Cross section and Higgs mass measurement with Higgsstrahlung at the CEPC[J]. CHINESE PHYSICS C中国物理. C,2017,41(2):23003.
APA	陈振兴.,杨迎.,阮曼奇.,王大勇.,李刚.,...&Ban, Y.(2017).Cross section and Higgs mass measurement with Higgsstrahlung at the CEPC.CHINESE PHYSICS C中国物理. C,41(2),23003.
MLA	陈振兴,et al."Cross section and Higgs mass measurement with Higgsstrahlung at the CEPC".CHINESE PHYSICS C中国物理. C 41.2(2017):23003.