Cosmic ray spectra in Nambu-Goldstone dark matter models
Cosmic ray spectra in Nambu-Goldstone dark matter models
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DOI：
10.1088/1126-6708/2009/11/120
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发表时间：
2009-08
影响因子：
5.4
通讯作者：
M. Ibe;H. Murayama;S. Shirai;T. Yanagida
中科院分区：
文献类型：
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作者：
M. Ibe;H. Murayama;S. Shirai;T. Yanagida
我们讨论了湮灭/衰变Nambu-Goldstone暗物质模型中的宇宙线谱。最近在PAMELA和费米实验中观察到的正电子/电子过剩与湮灭模型中质量为3 TeV的暗物质和衰变模型中质量为6 TeV的暗物质很好地拟合。我们还表明，Nambu-Goldstone暗物质模型在一定的参数空间中预测了独特的伽马射线谱。
We discuss the cosmic ray spectra in annihilating/decaying Nambu-Goldstone dark matter models. The recent observed positron/electron excesses at PAMELA and Fermi experiments are well fitted by the dark matter with a mass of 3 TeV for the annihilating model, while with a mass of 6 TeV for the decaying model. We also show that the Nambu-Goldstone dark matter models predict a distinctive gamma-ray spectrum in a certain parameter space.