Neutrino mass matrices with one texture equality and one vanishing neutrino mass

Neutrino mass matrices with one texture equality and one vanishing neutrino mass
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具有一种纹理相等和一种消失中微子质量的中微子质量矩阵

DOI:
10.1103/physrevd.96.075043
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发表时间:
2017-05
期刊:
影响因子:
5
通讯作者:
Wei Xing-Ning
Wei Xing-Ning
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Han Jinzhong;Wang Ruihong;Wang Weijian;Wei Xing-Ning

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根据最新的中微子振荡实验数据,系统地研究了包含一个消失的中微子质量和两个矩阵元素相等的Majorana中微子质量矩阵Mu的织构结构。在15个逻辑上可能的模式中,发现对于中微子质量的范数顺序($m_{3}>m_{2}>m_{1}=0$),只有5个模式在$3\sigma$水平上与最近的实验数据相容,而对于倒序($m_{2}>m_{1}>m_{3}=0$),唯象上允许10个模式。在数值分析中,我们对所有可行模式的参数空间进行扫描,以获得散射点的大样本。我们给出了三个混合角,轻子CP破坏和无中微子双β衰变的三个混合角,轻子CP破坏和无中微子双β衰变的每个允许模式的含义,并预测了振荡参数之间的强关联。在Froggatt-Nielsen机制的框架下,讨论了一个具体例子的理论实现。
In the light of latest data of neutrino oscillation experiments, we carry out a systematic investigation on the texture structures of Majorana neutrino mass matrix $M_{\nu}$, which contain one vanishing neutrino mass and an equality between two matrix elements. Among 15 logically possible patterns, it is found that for norm order ($m_{3}>m_{2}>m_{1}=0$) of neutrino masses only five of them are compatible with recent experimental data at the $3\sigma$ level, while for inverted order ($m_{2}>m_{1}>m_{3}=0$) ten patterns is phenomenologically allowed. In the numerical analysis, we perform a scan over the parameter space of all viable patterns to get a large sample of scattering points. We present the implications of each allowed pattern for three mixing angles $(\theta_{12},\theta_{2},\theta_{3})$, leptonic CP violation and neutrinoless double-beta decay, predicting strong correlations between oscillation parameters. The theoretical realization of a concrete example is discussed in the framework of Froggatt-Nielsen mechanism.
DOI: 10.1088/0954-3899/40/5/055003
发表时间: 2012-08
期刊: Journal of Physics G
影响因子: --
作者:
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通讯作者: W. Grimus;P. O. Ludl
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