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arXiv 0811.2226hep-ph
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准简并中微子与三-二-极大混合

Quasi-degenerate neutrinos and tri-bi-maximal mixing

Ivo de Medeiros Varzielas, Graham G. Ross, Mario Serna

摘要:

我们考虑如何,准简并中微子的三-双最大混合在高能尺度下,混合角的影响辐射运行从高到低的能量标度在超对称理论。确定了与所观察到的混合一致的高能尺度上的限制。我们构建了一个模型,其中一个非阿贝尔离散族对称性导致准简并中微子质谱和附近的三双最大混合。

英文摘要:

We consider how, for quasi-degenerate neutrinos with tri-bi-maximal mixing at a high-energy scale, the mixing angles are affected by radiative running from high to low-energy scales in a supersymmetric theory. The limits on the high-energy scale that follow from consistency with the observed mixing are determined. We construct a model in which a non-Abelian discrete family symmetry leads both to a quasi-degenerate neutrino mass spectrum and to near tri-bi-maximal mixing.

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