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arXiv 2011.10365hep-ph
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备选最小U(1)$_{\rm B-L}$

Alternative Minimal U(1)$_{\rm B-L}$

Kento Asai, Kazunori Nakayama, Shih-Yen Tseng

摘要:

本文给出了一个最小的替代规范U(1)$_{\rm B-L}$模型,其中引入了三个带(5,-4,-4)电荷的右手中微子和一个带1电荷的B-L Higgs场.如果在两个右手中微子上引入$Z_2$对称性,则可以得到一致的活动中微子质量和混合。它预言了两个重的简并右手中微子和一个相对轻的不育中微子,前者可能实现共振瘦生,后者是一个很好的暗物质候选者。

英文摘要:

We provide a minimal alternative gauged U(1)$_{\rm B-L}$ model in which three right-handed neutrinos with charges of (5,-4,-4) and only one B-L Higgs field with charge 1 are introduced. Consistent active neutrino masses and mixings can be obtained if the $Z_2$ symmetry on two of the right-handed neutrinos is introduced. It predicts two heavy degenerate right-handed neutrinos, which may realize resonant leptogenesis scenario, and one relatively light sterile neutrino, which is a good dark matter candidate.

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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