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arXiv 1303.7294hep-phastro-ph.CO
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自相互作用非对称暗物质的间接探测

Indirect Detection of Self-Interacting Asymmetric Dark Matter

Lauren Pearce, Alexander Kusenko

摘要:

自相互作用的暗物质解决了在非相互作用的冷暗物质模拟中出现的尖形轮廓的问题;它还可以解决结构形成中所谓的“太大而不能倒”的问题。不对称的暗物质为重子物质和暗物质的可比密度提供了一个自然的解释。本文讨论了自相互作用非对称纯量暗物质的极小模型产生的独特间接检测信号。通过形成暗物质束缚态,可以发射出暗力介质粒子;该粒子的衰变可以产生可观测到的信号。我们估计产生的信号,并明确证明参数的信号超过目前的观察。

英文摘要:

Self-interacting dark matter resolves the issue of cuspy profiles that appear in non-interacting cold dark matter simluations; it may additionally resolve the so-called "too big to fail" problem in structure formation. Asymmetric dark matter provides a natural explanation of the comparable densities of baryonic matter and dark matter. In this paper, we discuss unique indirect detection signals produced by a minimal model of self-interacting asymmetric scalar dark matter. Through the formation of dark matter bound states, a dark force mediator particle may be emitted; the decay of this particle may produce an observable signal. We estimate the produced signal and explicitly demonstrate parameters for which the signal exceeds current observations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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