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arXiv 1303.0108hep-phastro-ph.CO
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分离跷跷板及其在暗物质和重子生成中的应用

Separate seesaw and its applications to dark matter and baryogenesis

Ryo Takahashi

摘要:

我们提出了一个新的跷跷板模型在一个额外的维设置,只有右手中微子的体场。在该模型中,右手中微子的额外维波函数和膜马约拉纳质量的局域化可以是不同的每一代的右手中微子。该装置可以导致不同的抑制因子依赖的有效右手中微子质量和中微子汤川耦合的每一代。结果表明,右手中微子和中微子汤川耦合的质量谱有利于中微子暗物质模型与重子生成。

英文摘要:

We propose a new seesaw model in an extra-dimensional setup where only right-handed neutrinos are bulk fields. In the model, localizations of an extra-dimensional wave function and brane Majorana mass of the right-handed neutrinos can be different among each generation of the right-handed neutrinos. The setup can lead to different suppression factor dependences of effective right-handed neutrino masses and neutrino Yukawa couplings for each generation. It is shown that the resultant mass spectra of the right-handed neutrinos and neutrino Yukawa couplings are favored in models of neutrino dark matter with baryogenesis.

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