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题名: Pair production of 125 GeV Higgs boson in the SM extension with color-octet scalars at the LHC
作者: Heng, ZX ;  Shang, LL ;  Zhang, YM ;  Zhang, Y ;  Zhu, JY
刊名: JOURNAL OF HIGH ENERGY PHYSICS
出版日期: 2014
期号: 2, 页码:83
关键词: DARK-MATTER ;  MASS ;  MODEL ;  MSSM ;  CONSTRAINTS ;  CMSSM ;  NMSSM ;  SUPERSYMMETRY ;  MU(+)MU(-) ;  DISCOVERY
学科分类: Physics
DOI: 10.1007/JHEP02(2014)083
通讯作者: Heng, ZX (reprint author), Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China.
部门归属: [Heng, Zhaoxia; Shang, Liangliang; Zhang, Yanming; Zhang, Yang] Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China; [Zhang, Yang; Zhu, Jingya] Acad Sinica, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, 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.
资助者: National Natural Science Foundation of China (NNSFC) [11247268, 11305050]; Specialized Research Fund for the Doctoral Program of Higher Education [20124104120001]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000331995400001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15472
Appears in Collections:理论物理所2014年知识产出 _期刊论文

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Recommended Citation:
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.
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