Dark matter in the little Higgs model under current experimental constraints from the LHC, Planck, and Xenon data

Dark matter in the little Higgs model under current experimental constraints from the LHC, Planck, and Xenon data
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在大型强子对撞机、普朗克和氙数据的当前实验限制下,小希格斯模型中的暗物质

DOI:
10.1103/physrevd.88.075018
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发表时间:
2013-07
期刊:
Physical Review D - Particles, Fields, Gravitation and Cosmology
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--
通讯作者:
Jingya Zhu
Jingya Zhu
中科院分区:
其他
文献类型:
--
作者:
Lei Wang;Jin Min Yang;Jingya Zhu

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根据LHC Higgs搜索的新结果、Planck暗物质遗迹密度和XENON100对核子外暗物质散射的限制,我们研究了具有T宇称(LHT)的最小Higgs模型中暗物质(重光子)的状态。我们得到了以下观测结果:(I)对于LHC-Higgs数据,LHT可以很好地与CMS的结果一致,但不被双光子增强的ATLAS观测所接受;(Ii)对于暗物质的遗迹密度,LHT中的重光子可以解释镜像轻子和重光子的小质量分裂的Planck数据;(Iii)对于暗物质在核子外的散射,重光子可以在m(AH)&gT;95GeV(f&gT;665GeV)的XENON100上限以下给出一个与自旋无关的截面;(4)用CMS Higgs数据进行拟合,在f相似或等于1120GeV,m(AH)相似或等于170GeV(此时,也可以满足Planck和XENON100的暗物质约束)时,最低X平方为2.63(标准模型值为4.75)。未来的XENON1T(2017)实验可以涵盖这样的最佳点及其附近的有利区域(即使f值高达3.8TeV)。
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.
DOI: --
发表时间: 2009
期刊: --
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作者:
Z. Karpova;M. N. Sergeenko;V. Bednyakov
通讯作者: Z. Karpova;M. N. Sergeenko;V. Bednyakov
DOI: --
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