Scalar dark matter interpretation of the DAMPE data with U(l) gauge Interactions
Scalar dark matter interpretation of the DAMPE data with U(l) gauge Interactions
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DAMPE 数据与 U(l) 规范相互作用的标量暗物质解释
DOI：
10.1103/physrevd.97.095011
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发表时间：
2018
影响因子：
5
通讯作者：
Wu Peiwen
中科院分区：
文献类型：
--
作者：
Cao Junjie;Feng Lei;Guo Xiaofei;Shang Liangliang;Wang Fei;Wu Peiwen
最近，暗物质粒子探测器（DAMPE）实验发布了25 GeV和4.6 TeV之间的总宇宙通量的新测量结果，这表明在0.9 TeV左右的光谱软化和在1.4 TeV左右的暂定峰值。我们利用标量暗物质（DM）模型来解释DAMPE峰，并附加了一个无反常规范族对称性，其中，和分别表示标量DM，新规范玻色子，和，。我们首先说明，上述质量选择的最小框架可以解释DAMPE过剩，然而，这是从这些研究中排除的LHC约束。然后，我们研究了一个非极小框架，在该框架中混合。我们表明，这样的框架可以解释的DAMPE数据，并在同一时间生存的所有其他限制，包括DM遗迹丰度，DM直接检测，碰撞边界。我们还研究了在此框架下的预测谱，发现产生峰状结构的质量分裂应小于17GeV。
Recently, the Dark Matter Particle Explorer (DAMPE) experiment released the new measurement of the total cosmicflux between 25 GeV and 4.6 TeV, which indicates a spectral softening at around 0.9 TeV and a tentative peak at around 1.4 TeV. We utilize a scalar dark matter (DM) model to explain the DAMPE peak bywith an additional anomaly-free gaugedfamily symmetry, in which,, anddenote, respectively, the scalar DM, the new gauge boson, and,,with. We first illustrate that the minimal frameworkwith the above mass choices can explain the DAMPE excess, which, however, be excluded by LHC constraints from thesearches. Then, we study a nonminimal frameworkin whichmixes with. We show that such a framework can interpret the DAMPE data and at the same time survive all other constraints including the DM relic abundance, DM direct detection, and collider bounds. We also investigate the predictedspectrum in this framework and find that the mass splittingshould be less than about 17 GeV to produce the peaklike structure.