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Minimal neutrino texture with neutrino mass ratio and Cabibbo angle

机译:中微子质量比和Cabibbo角最小的中微子质地

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We present neutrino mass matrix textures in a minimal framework of the type-I seesaw mechanism, where two right-handed Majorana neutrinos are introduced in order to reproduce experimental results of neutrino oscillations. The textures can lead to experimentally favored leptonic mixing angles described by tri-bimaximal mixing with one additional rotation. We present minimal and next to minimal textures for the normal mass hierarchy case in the context of the texture zero. A minimal texture in the inverted hierarchy case is also constructed, which does not have any vanishing entries in a Dirac neutrino mass matrix. We also discuss some cases in which the model parameters in the textures are supposed to be a neutrino mass ratio and/or the Cabibbo angle. Predicted regions of mixing angles, a leptonic CP-violation parameter, and an effective mass for the neutrinoless double beta decay are presented in all textures.
机译:我们在I型跷跷板机制的最小框架中展示中微子质量矩阵纹理,其中引入了两个右手的Majorana中微子,以重现中微子振荡的实验结果。纹理可以导致实验上偏爱的轻子混合角度,该角度通过三重双最大混合旋转一圈来描述。在纹理零的情况下,对于正常的质量层次结构,我们展示了最小和最小的纹理。在反向层次结构的情况下,还将构造一个最小纹理,该纹理在Dirac中微子质量矩阵中没有任何消失的条目。我们还讨论了一些情况,其中纹理中的模型参数假定为中微子质量比和/或Cabibbo角。在所有纹理中都显示了混合角,轻子CP违反参数和无中微子双β衰变有效质量的预测区域。

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