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题名: Dark matter in the little Higgs model under current experimental constraints from the LHC, Planck, and Xenon data
作者: Wang, L ;  Yang, JM ;  Zhu, JY
刊名: PHYSICAL REVIEW D
出版日期: 2013
卷号: 88, 期号:7, 页码:75018
关键词: STANDARD MODEL ;  ATLAS DETECTOR ;  T-PARITY ;  BOSON ;  SEARCH ;  MASS
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; Zhu, Jingya] Acad Sinica, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
英文摘要: We examine the status of dark matter (heavy photon) in the littlest Higgs model with T parity (LHT) in light of the new results from the LHC Higgs search, the Planck dark matter relic density, and the XENON100 limit on the dark matter scattering off the nucleon. We obtain the following observations: (i) For the LHC Higgs data, the LHT can well be consistent with the CMS results but disfavored by the ATLAS observation of diphoton enhancement; (ii) for the dark matter relic density, the heavy photon in the LHT can account for the Planck data for the small mass splitting of mirror lepton and heavy photon; (iii) for the dark matter scattering off the nucleon, the heavy photon can give a spin-independent cross section below the XENON100 upper limit for m(AH) > 95 GeV (f > 665 GeV); (iv) a fit using the CMS Higgs data gives the lowest chi square of 2.63 (the standard model value is 4.75) at f similar or equal to 1120 GeV and m(AH) similar or equal to 170 GeV (at this point, the dark matter constraints from Planck and XENON100 can also be satisfied). Such a best point and its nearby favored region (even for an f value up to 3.8 TeV) can be covered by the future XENON1T (2017) experiment.
资助者: National Natural Science Foundation of China (NNSFC) [11005089, 11105116, 11275245, 10821504, 11135003]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000326161900007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15260
Appears in Collections:理论物理所2013年知识产出 _期刊论文

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Recommended Citation:
Wang, L,Yang, JM,Zhu, JY. Dark matter in the little Higgs model under current experimental constraints from the LHC, Planck, and Xenon data[J]. PHYSICAL REVIEW D,2013,88(7):75018.
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