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arXiv 0712.0903hep-ph
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具有Majorana质量项和Friedberg-Lee对称性的中微子扇区

Neutrino Sector with Majorana Mass Terms and Friedberg-Lee Symmetry

C. Jarlskog

摘要:

本文在三族最小标准模型的谱中加入三个右手中微子的框架下研究了Friedberg和Lee最近提出的对称性/条件。研究发现,右手中微子是非常特殊的,关于这种对称性。在对称极限下,中微子是无质量的,这可能是它们为什么是轻的一个暗示。作为一个条件,而不是作为一个完整的对称性,我们发现,三个右手中微子之一只是简单的对称(只有引力相互作用),并有一个无质量的相互作用中微子。简要讨论了该模型与跷跷板机制的可能关系。

英文摘要:

We examine a recently proposed symmetry/condition by Friedberg and Lee in the framework where three right-handed neutrinos are added to the spectrum of the three-family Minimal Standard Model. It is found that the right-handed neutrinos are very special, with respect to this symmetry. In the symmetry limit the neutrinos are massless and that may be a hint about why they are light. Imposed as a condition and not as a full symmetry, we find that one of the three right-handed neutrinos simply decouples (has only gravitational interactions) and that there is a massless interacting neutrino. The possible relation of the model to the see-saw mechanism is briefly discussed.

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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