Pair production of 125 GeV Higgs boson in the SM extension with color-octet scalars at the LHC

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	Pair production of 125 GeV Higgs boson in the SM extension with color-octet scalars at the LHC
	Heng, ZX ; Shang, LL ; Zhang, YM ; Zhang, Y ; Zhu, JY
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2014
期号	2 页码:83
关键词	DARK-MATTER MASS MODEL MSSM CONSTRAINTS CMSSM NMSSM SUPERSYMMETRY MU(+)MU(-) DISCOVERY
ISSN号	1029-8479
通讯作者	Heng, ZX (reprint author), Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China.
英文摘要	Although the Higgs boson mass and single production rate have been determined more or less precisely, its other properties may deviate significantly from its predictions in the standard model (SM) due to the uncertainty of Higgs data. In this work we study the Higgs pair production at the LHC in the Manohar-Wise model, which extends the SM by one family of color-octet and isospin-doublet scalars. We first scanned over the parameter space of the Manohar-Wise model considering experimental constraints and performed fits in the model to the latest Higgs data by using the ATLAS and CMS data separately. Then we calculated the Higgs pair production rate and investigated the potential of its discovery at the LHC14. We conclude that: (i) Under current constrains including Higgs data after Run I of the LHC, the cross section of Higgs pair production in the Manohar-Wise model can be enhanced up to even 10(3) times prediction in the SM. (ii) Moreover, the sizable enhancement comes from the contributions of the CP-odd color-octet scalar . For lighter scalar and larger values of \|lambda(I)\|, the cross section of Higgs pair production can be much larger. (iii) After running again of LHC at 14 TeV, most of the parameter spaces in the Manohar-Wise model can be test. For an integrated luminosity of 100 fb(-1) at the LHC14, when the normalized ratio R = 10, the process of Higgs pair production can be detected.
学科主题	Physics
收录类别	SCI
资助信息	National Natural Science Foundation of China (NNSFC) [11247268, 11305050]; Specialized Research Fund for the Doctoral Program of Higher Education [20124104120001]
原文出处	http://dx.doi.org/10.1007/JHEP02(2014)083
语种	英语
WOS记录号	WOS:000331995400001
公开日期	2014-04-25
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15472]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Heng, ZX,Shang, LL,Zhang, YM,et al. Pair production of 125 GeV Higgs boson in the SM extension with color-octet scalars at the LHC[J]. JOURNAL OF HIGH ENERGY PHYSICS,2014(2):83.
APA	Heng, ZX,Shang, LL,Zhang, YM,Zhang, Y,&Zhu, JY.(2014).Pair production of 125 GeV Higgs boson in the SM extension with color-octet scalars at the LHC.JOURNAL OF HIGH ENERGY PHYSICS(2),83.
MLA	Heng, ZX,et al."Pair production of 125 GeV Higgs boson in the SM extension with color-octet scalars at the LHC".JOURNAL OF HIGH ENERGY PHYSICS .2(2014):83.