Higgs-strahlung production process e(+)e(-) -> Zh at the future Higgs factory in the Minimal Dilaton Model

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	Higgs-strahlung production process e(+)e(-) -> Zh at the future Higgs factory in the Minimal Dilaton Model
	Cao, JJ ; Heng, ZX ; Li, DW ; Shang, LL ; Wu, PW
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2014
期号	8 页码:138
关键词	TECHNI-DILATON LHC BOSON SEARCH MSSM NMSSM
ISSN号	1029-8479
通讯作者	Cao, JJ (reprint author), Henan Normal Univ, Dept Phys, Xinxing 453007, 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%.
学科主题	Physics
收录类别	SCI
资助信息	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]
原文出处	http://dx.doi.org/10.1007/JHEP08(2014)138
语种	英语
WOS记录号	WOS:000341435600001
公开日期	2015-06-03
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15671]
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	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.
APA	Cao, JJ,Heng, ZX,Li, DW,Shang, LL,&Wu, PW.(2014).Higgs-strahlung production process e(+)e(-) -> Zh at the future Higgs factory in the Minimal Dilaton Model.JOURNAL OF HIGH ENERGY PHYSICS(8),138.
MLA	Cao, JJ,et al."Higgs-strahlung production process e(+)e(-) -> Zh at the future Higgs factory in the Minimal Dilaton Model".JOURNAL OF HIGH ENERGY PHYSICS .8(2014):138.