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题名: Higgs-strahlung production process e(+)e(-) -> Zh at the future Higgs factory in the Minimal Dilaton Model
作者: Cao, JJ ;  Heng, ZX ;  Li, DW ;  Shang, LL ;  Wu, PW
刊名: JOURNAL OF HIGH ENERGY PHYSICS
出版日期: 2014
期号: 8, 页码:138
关键词: TECHNI-DILATON ;  LHC ;  BOSON ;  SEARCH ;  MSSM ;  NMSSM
学科分类: Physics
DOI: 10.1007/JHEP08(2014)138
通讯作者: Cao, JJ (reprint author), Henan Normal Univ, Dept Phys, Xinxing 453007, Peoples R China.
部门归属: [Cao, Junjie ;  Heng, Zhaoxia ;  Li, Dongwei ;  Shang, Liangliang] Henan Normal Univ, Dept Phys, Xinxing 453007, Peoples R China ;  [Cao, Junjie] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China ;  [Wu, Peiwen] Acad Sinica, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
英文摘要: We investigate the Higgs-strahlung production process e(+)e(-) -> Zh at the future Higgs factory such as TLEP by including radiative corrections in the Minimal Dilaton Model (MDM), which extends the SM by one singlet scalar called dilaton. We consider various theoretical and experimental constraints on the model, and perform fits to the Higgs data taken from ATLAS, CMS and CDF+D0. Then for the 1 sigma surviving samples, we calculate the MDM predictions on the inclusive production rate sigma(e(+)e(-) -> Zh) at the 240-GeV Higgs factory, and also the signal rates of e(+)e(-) -> Zh with the Higgs boson decaying to b (b) over bar and gamma gamma. We have following observations: (1) In the heavy dilaton scenario, the deviation of sigma(e(+)e(-) -> Zh) from its SM prediction can vary from -15% to 85%, which mainly arises from the modification of the tree-level hZZ coupling and also the radiative correction induced by possibly large Higgs self-couplings. (2) The processes e(+)e(-) -> Zh at the Higgs factory and pp -> hh at 14-TeV LHC are complementary in limiting the MDM parameter space. Requiring the deviation of sigma(e(+)e(-) -> Zh) from its SM prediction to be less than 1% and that of sigma(pp -> hh) to be less than 50%, tan theta(S) in the MDM will be limited to be -0.1 < tan theta (S) < 0.3, and the deviations of the signal rates are constrained to be vertical bar R-b<(b)over bar>vertical bar < 2% and vertical bar R-gamma gamma vertical bar < 7%. Especially, the Higgs self-coupling normalized to its SM prediction is now upper bounded by about 4. (3) In the light dilaton scenario, the deviation of sigma(e(+)e(-) -> Zh) may reach -7%, and requiring its size to be less than 1% will result in 0 < tan theta(S) < 0.1, and -10% < R-b<(b)over bar>, R-gamma gamma < 1%.
资助者: National Natural Science Foundation of China (NNSFC) [10775039, 11075045, 11275245, 10821504, 11305050]; Program for New Century Excellent Talents in University; Project of Knowledge Innovation Program (PKIP) of Chinese Academy of Sciences [KJCX2.YW.W10]; 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:000341435600001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15671
Appears in Collections:理论物理所2014年知识产出 _期刊论文

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Recommended Citation:
Cao, JJ,Heng, ZX,Li, DW,et al. Higgs-strahlung production process e(+)e(-) -> Zh at the future Higgs factory in the Minimal Dilaton Model[J]. JOURNAL OF HIGH ENERGY PHYSICS,2014(8):138.
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