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New hybrid textures for neutrino mass matrices
Nuclear Physics B ( IF 2.8 ) Pub Date : 2020-06-06 , DOI: 10.1016/j.nuclphysb.2020.115081
S. Dev , Desh Raj

We perform a systematic investigation of the texture structures of Majorana neutrino mass matrix Mν having two texture zeros and an equality between two nonzero matrix elements, in the light of recent neutrino oscillation data. Among forty-two possible textures, it is found that only eight textures are compatible with the current experimental data at 3σ C.L. Out of these phenomenologically viable textures, six follow normal mass ordering while remaining two satisfy the inverted mass ordering of neutrino mass spectrum. In the numerical analysis, we carry out a scan over the possible space of all viable patterns. We present the implications of each allowed patterns for three mixing angles (solar, reactor and atmospheric), leptonic CP-violation, neutrino mass scale and the neutrinoless double beta decay indicating strong correlations between oscillation parameters. The symmetry realization of one of the viable textures is also presented.



中文翻译:

中微子质量矩阵的新混合纹理

我们对马约拉纳中微子质量矩阵的纹理结构进行了系统的研究 中号ν根据最近的中微子振荡数据,具有两个纹理零和两个非零矩阵元素之间的相等性。间42可能纹理,发现只有八个纹理与当前实验数据兼容3 σCL在这些现象学上可行的纹理中,六个遵循正常质量顺序,而其余两个满足中微子质谱的反向质量顺序。在数值分析中,我们对所有可行模式的可能空间进行了扫描。我们介绍了三种混合角度(太阳能,反应堆和大气),轻子CP违规,中微子质量标度和无中微子双β衰变的每种允许模式的含义,表明振荡参数之间具有很强的相关性。还提出了一种可行纹理的对称实现。

更新日期:2020-06-18
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