LMA solution to the solar neutrino problem and a phenomenological charged lepton mass matrix
LMA solution to the solar neutrino problem and a phenomenological charged lepton mass matrix
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太阳中微子问题的 LMA 解决方案和唯象带电轻子质量矩阵
DOI：
10.1140/epjc/s2002-01105-3
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
Yuan
中科院分区：
文献类型：
--
作者：
X. Bi;Yuan
我们提出了一种唯象形式的带电轻子质量矩阵，它扩展了文献中发现的“不平衡”质量矩阵的概念。该形式的特点是带电轻子质量矩阵的2-3元和1-3元都是1阶的，小元具有新的结构。这种形式导致了一个有趣的结果，即大的大气和太阳中微子混合都可以用矩阵来解释。这个质量矩阵的另一个有趣的结果是，它导致轻子扇区中非常小的1-3混合，并且可以在超对称跷跷板情况下将分支比抑制到目前的实验极限以下。
We propose a phenomenological form of the charged lepton mass matrix which extends the idea of a ”lopsided” mass matrix found in the literature. The features of the form are that both the 2-3 and 1-3 elements of the charged lepton mass matrix are of order 1 and that the small elements have a new structure. This form leads to the interesting result that both large atmospheric and solar neutrino mixing can be accounted for by the matrix. Another interesting result of this mass matrix is that it leads to very small 1-3 mixing in the lepton sector and can suppress the branching ratio ofunder the present experimental limit in the supersymmetric see-saw case.