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arXiv 1004.0065hep-ph
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四个零中微子汤川纹理的魔力

The magic of four zero neutrino Yukawa textures

Probir Roy

摘要:

四是三个大质量中微子的汤川耦合矩阵中允许的最大纹理零点数。就实验室能量而言,这些完全修复了leptogenesis所需的高尺度CP破坏。$μτ$对称性大大减少了这种允许的纹理。只有一种形式的轻中微子质量矩阵可以舒适地生存,而另一种形式则勉强允许。

英文摘要:

Four is the maximum number of texture zeros allowed in the Yukawa coupling matrix of three massive neutrinos. These completely fix the high scale CP violation needed for leptogenesis in terms of that accessible at laboratory energies. $μτ$ symmetry drastically reduces such allowed textures. Only one form of the light neutrinos mass matrix survives comfortably while another is marginally allowed.

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