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题名: LHC diphoton Higgs signal predicted by little Higgs models
作者: Wang, L ;  Yang, JM
刊名: PHYSICAL REVIEW D
出版日期: 2011
卷号: 84, 期号:7, 页码:75024
关键词: SUPERSYMMETRIC STANDARD MODEL ;  T-PARITY ;  BOSON PRODUCTION ;  DECAYS ;  LEPTON
学科分类: Physics
通讯作者: Wang, L (reprint author), Yantai Univ, Dept Phys, Yantai 264005, Peoples R China.
部门归属: [Wang, Lei] Yantai Univ, Dept Phys, Yantai 264005, Peoples R China; [Yang, Jin Min] Acad Sinica, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China
英文摘要: Little Higgs theory naturally predicts a light Higgs boson whose most important discovery channel at the LHC is the diphoton signal pp -> h -> gamma gamma. In this work, we perform a comparative study for this signal in some typical little Higgs models, namely, the littlest Higgs model, two littlest Higgs models with T-parity (named LHT-I and LHT-II), and the simplest little Higgs models. We find that compared with the standard model prediction, the diphoton signal rate is always suppressed and the suppression extent can be quite different for different models. The suppression is mild (<= 10%) in the littlest Higgs model but can be quite severe (similar or equal to 90%) in other three models. This means that discovering the light Higgs boson predicted by the little Higgs theory through the diphoton channel at the LHC will be more difficult than discovering the standard model Higgs boson.
资助者: JSPS; National Natural Science Foundation of China (NNSFC) [11005089, 10821504, 10725526, 10635030]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000296887600005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14245
Appears in Collections:理论物理所2011年知识产出_期刊论文

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Recommended Citation:
Wang, L,Yang, JM. LHC diphoton Higgs signal predicted by little Higgs models[J]. PHYSICAL REVIEW D,2011,84(7):75024.
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