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arXiv 1803.04599hep-ph
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最小规范$(B-L)$超对称中的中微子质量

Neutrino masses in the minimal gauged $(B-L)$ supersymmetry

Yu-Li Yan, Tai-Fu Feng, Jin-Lei Yang, Hai-Bin Zhang, Shu-Min Zhao, Rong-Fei Zhu

摘要:

本文给出了具有局部$U(1)_{B-L}$对称性的标准模型的极小超对称扩展中中微子质量的辐射修正。在树的水平上,通过跷跷板机制可以得到三个微小的活动中微子和两个几乎无质量的不育中微子。在考虑中微子质量的单圈修正后,数值结果表明,两个惰性中微子获得了${\rm KeV}$质量和小的活跃-惰性中微子混合角.在宇宙学中,较轻的无菌中微子是一种非常有趣的暗物质候选者。同时,得到的活跃中微子混合角和质量平方差与现有的实验数据一致。

英文摘要:

We present the radiative corrections to neutrino masses in a minimal supersymmetric extension of the standard model with local $U(1)_{B-L}$ symmetry. At tree level, three tiny active neutrinos and two nearly massless sterile neutrinos can be obtained through the seesaw mechanism. Considering the one-loop corrections to the neutrino masses, the numerical results indicate that two sterile neutrinos obtain ${\rm KeV}$ masses and the small active-sterile neutrino mixing angles. The lighter sterile neutrino is a very interesting dark matter candidate in cosmology. Meanwhile the active neutrinos mixing angles and mass squared differences agree with present experimental data.

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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