具有三个或四个零余因子和非对角带电轻子扇形的中微子质量矩阵
Neutrino mass matrices with three or four vanishing cofactors and non diagonal charged lepton sector
摘要：
研究了带电轻子质量矩阵中含有四个非零元素和中微子质量矩阵中含有三个零余因子的轻子质量矩阵的织构结构.利用弱基变换，将$M_ν$中3个和4个消失余子式的所有可能纹理分为7类，并得到了唯象允许纹理的Dirac CP破坏相位和有效Majorana质量等未知参数的预测.我们，还说明了如何使用离散阿贝尔味对称性，可以实现这样的纹理结构。
英文摘要：
We investigate the texture structures of lepton mass matrices with four (five) non-zero elements in the charged lepton mass matrix and three (four) vanishing cofactors in the neutrino mass matrix. Using weak basis transformations, all possible textures for three and four vanishing cofactors in $M_ν$ are grouped into 7 classes and predictions for the unknown parameters such as the Dirac CP violating phase and the effective Majorana mass for the phenomenologically allowed textures have been obtained. We, also, illustrate how such texture structures can be realized using discrete Abelian flavor symmetries.
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