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arXiv 0903.4333astro-ph.CO
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具有多个中微子种类的质量变化中微子

Mass Varying Neutrinos With More Than One Species Of Neutrinos

Ole Eggers Bjaelde

摘要:

在变质量中微子(MaVaNs)的背景下,我们研究了一个标量场与多个不同质量的中微子耦合的模型。一般来说,非相对论性的MaVaN的绝热模型在很大程度上受到它们对中微子核形成的稳定性的限制。这些限制也适用于具有多个中微子种类的模型,我们发现,使用最轻的中微子,这仍然是相对论性的,作为暗能量的解释是行不通的,因为来自较重的中微子的反馈机制。

英文摘要:

In the context of Mass Varying Neutrinos(MaVaNs) we study a model in which a scalar field is coupled to more than one species of neutrinos with different masses. In general, adiabatic models of non-relativistic MaVaNs are heavily constrained by their stability towards the formation of neutrino nuggets. These constraints also apply to models with more than one neutrino species, and we find that using the lightest neutrino, which is still relativistic, as an explanation for dark energy does not work because of a feedback mechanism from the heavier neutrinos.

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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