arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1406.0004hep-phastro-ph.CO
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中微子物理学与暗物质的联系

Connecting neutrino physics with dark matter

Massimiliano Lattanzi, Roberto A. Lineros, Marco Taoso

摘要:

中微子质量的起源和暗物质的性质是现代天体粒子物理学中两个最迫切的问题。在这里,我们认为这两个问题是相关的可能性,并回顾了一些理论方案,提供共同的解决方案。一个简单的可能性是,暗物质粒子出现在跷跷板机制的最小实现中,就像在majoron和无菌中微子场景中一样。我们提出了这两种模型的理论动机,并讨论了它们的现象学,面对这些方案的预测与宇宙学和天体物理学的观测。最后,我们讨论了暗物质的稳定性起源于轻子扇区的味对称性的可能性。我们回顾了一个基于A_4味对称性的建议。

英文摘要:

The origin of neutrino masses and the nature of dark matter are two of the most pressing open questions of the modern astro-particle physics. We consider here the possibility that these two problems are related, and review some theoretical scenarios which offer common solutions. A simple possibility is that the dark matter particle emerges in minimal realizations of the see-saw mechanism, like in the majoron and sterile neutrino scenarios. We present the theoretical motivation for both models and discuss their phenomenology, confronting the predictions of these scenarios with cosmological and astrophysical observations. Finally, we discuss the possibility that the stability of dark matter originates from a flavour symmetry of the leptonic sector. We review a proposal based on an A_4 flavour symmetry.

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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