Superweakly interacting massive particles.
Superweakly interacting massive particles.
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DOI：
10.1103/physrevlett.91.011302
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发表时间：
2003-02
影响因子：
8.6
通讯作者：
Jonathan L. Feng;A. Rajaraman;F. Takayama
中科院分区：
文献类型：
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作者：
Jonathan L. Feng;A. Rajaraman;F. Takayama
我们研究了一类新的暗物质：超弱相互作用大质量粒子（super-WIMPs）。与传统的WIMP一样，超级WIMP出现在动机良好的粒子理论中，自然具有正确的残余密度。然而，与WIMP相反，超级WIMP在所有传统的暗物质搜索中都是不可能检测到的。我们考虑的具体例子的引力子和引力子冷暗物质的模型与超对称性和普遍的额外的维度，分别，并表明，超WIMP暗物质满足严格的约束，从大爆炸核合成和宇宙微波背景。
We investigate a new class of dark matter: superweakly interacting massive particles (super-WIMPs). As with conventional WIMPs, super-WIMPs appear in well motivated particle theories with naturally the correct relic density. In contrast to WIMPs, however, super-WIMPs are impossible to detect in all conventional dark matter searches. We consider the concrete examples of gravitino and graviton cold dark matter in models with supersymmetry and universal extra dimensions, respectively, and show that super-WIMP dark matter satisfies stringent constraints from big bang nucleosynthesis and the cosmic microwave background.