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题名: Higgs phenomenology in the Minimal Dilaton Model after Run I of the LHC
作者: Cao, JJ;  He, YL;  Wu, PW;  Zhang, MC;  Zhu, JY
刊名: JOURNAL OF HIGH ENERGY PHYSICS
出版日期: 2014
期号: 1, 页码:150
关键词: BOSON PAIR PRODUCTION ;  STANDARD-MODEL ;  TECHNI-DILATON ;  ATLAS DETECTOR ;  GLUON FUSION ;  MASS ;  CONSTRAINTS ;  SEARCH ;  BOUNDS ;  QUARK
学科分类: Physics
DOI: 10.1007/JHEP01(2014)150
通讯作者: Cao, JJ (reprint author), Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China.
部门归属: [Cao, Junjie
英文摘要: The Minimal Dilaton Model (MDM) extends the Standard Model (SM) by a singlet scalar, which can be viewed as a linear realization of general dilaton field. This new scalar field mixes with the SM Higgs field to form two mass eigenstates with one of them corresponding to the 125 GeV SM-like Higgs boson reported by the LHC experiments. In this work, under various theoretical and experimental constrains, we perform fits to the latest Higgs data and then investigate the phenomenology of Higgs boson in both the heavy dilaton scenario and the light dilaton scenario of the MDM. We find that: (i) if one considers the ATLAS and CMS data separately, the MDM can explain each of them well, but refer to different parameter space due to the apparent difference in the two sets of data. If one considers the combined data of the and Tevatron, however, the explanation' given by the MDM is not much better than the SM, and the dilaton component in the 125-GeV Higgs is less than about 20% at 2 sigma level. (ii) The current Riggs data have stronger constrains on the light dilator' scenario than on the heavy dilaton scenario. (iii) The heavy dilator' scenario can produce a Higgs triple self coupling much larger than the SM value, and thus a significantly enhanced Higgs pair cross section at hadron colliders. With a luminosity of 100 fb(-1) (10fb(-1)) at the 14-17eV Lite, a heavy dilator' of 400 GeV (500 GeV) can be examined. (iv) In the light dilaton scenario, the Higgs exotic branching ratio can reach 43% (60%) at 2 sigma (3 sigma) level when considering only the CMS data, which may be detected at the 14-TeV LHC with a luminosity of 300 fb(-1) and the Higgs Factory.
资助者: National Natural Science Foundation of China (NNSFC) [10775039, 11075045, 11275245, 10821504, 11135003]; Program for New Century Excellent Talents in University; Project of Knowledge Innovation Program (PKIP) of Chinese Academy of Sciences [KJCX2.YW.W10]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000346240400005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15818
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Recommended Citation:
Cao, JJ,He, YL,Wu, PW,et al. Higgs phenomenology in the Minimal Dilaton Model after Run I of the LHC[J]. JOURNAL OF HIGH ENERGY PHYSICS,2014(1):150.
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