arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1709.07091hep-phastro-ph.CO
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作为非WIMP暗物质候选者的轴子

Axion as a non-WIMP dark matter candidate

Ken'ichi Saikawa

摘要:

轴子起源于粒子物理学标准模型的扩展,被认为是弱相互作用大质量粒子范式的替代,可以解释暗物质的性质。在这篇文章中,我们回顾了暗物质轴子的理论方面,特别是集中在最近的事态发展,估计其遗迹丰度。仔细研究它们在早期宇宙中的非热产生机制,揭示了解释观测到的各种质量范围的暗物质丰度的可能性。在各种宇宙学的情况下预测的质量范围进行了简要总结。

英文摘要:

The axion arises in well-motivated extensions of the Standard Model of particle physics and is regarded as an alternative to the weakly interacting massive particle paradigm to explain the nature of dark matter. In this contribution, we review theoretical aspects of dark matter axions, particularly focusing on recent developments in the estimation of their relic abundance. A closer look at their non-thermal production mechanisms in the early universe reveals the possibility of explaining the observed dark matter abundance in various mass ranges. The mass ranges predicted in various cosmological scenarios are briefly summarized.

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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