Deviation from Tri-Bimaximal Neutrino Mixing in A4 Flavor Symmetry
Deviation from Tri-Bimaximal Neutrino Mixing in A4 Flavor Symmetry
复制标题
A4 味对称中三双极大中微子混合的偏差
DOI：
10.1143/ptp.119.583
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发表时间：
2007
影响因子：
--
通讯作者：
M. Tanimoto
中科院分区：
文献类型：
--
作者：
M. Honda;M. Tanimoto
三双极大混合是目前中微子混合角数据的一个很好的近似。在A4模型的框架下，对三双极大混合的偏差进行了数值讨论。由于黄素场真空排列的修正，tan 2 θ12、s 2θ23和| u3 |的值偏离了三极大混合。值得注意的是，sin 2θ23与1的偏差可以忽略，而sin 2 θ12与1/3的偏差可以很大，sin θ13可以接近目前的实验上界。CP违反措施JCP和
Tri-bimaximal mixing is a good approximation for the present data of neutrino mixing angles. The deviation from tri-bimaximal mixing is discussed numerically in the framework of the A4 model. Values of tan 2 θ12 ,s in 2 2θ23 and |Ue3| deviate from tri-bimaximal mixing due to the corrections of the vacuum alignment of flavon fields. It is noted that sin 2 2θ23 deviates negligibly from 1 while sin 2 θ12 can deviate from 1/3 considerably and sin θ13 can be near the present experimental upper bound. The CP violating measure JCP and the