Search for the relation between the CP violation phases appearing in neutrino oscillation and leptogenesis

在这个项目中，我从低能和高能的各种现象出发，研究了由拉锯机制产生的中微子群的结构。我们认为，在低能中微子振荡中，轻子数破坏过程，如无中微子双β衰变和u介子俘获，而在高能中微子振荡中，产生了超对称统一理论中的瘦子生成和有效相互作用。为了讨论这些现象，我们使用了重整化群分析及其解析解。特别是，我们通过假设高能下特殊的中微子混合方案分析了各种现象，结果表明该模型很好地再现了实验数据，并给出了各种预测，特别是关于中微子混合矩阵的13个元素和Dirac CP相。2.研究了Majorana CP位相对轻子味破坏过程的影响，发现这种影响是非常重要的。3.系统地研究了各种轻子数破坏过程及其在当前和近期实验中进行实验研究的可能性。4.线对撞机中产生的希格斯粒子衰变中的轻子味破坏。5.提出了暗能量的来源，并论证了暗能量的可能性。

In this project, I investigated the structure of neutrino masse which arises from the see-saw mechanism, in view of various phenomena in the low and high energies. We considered that in the low energy the neutrino oscillation, the lepton number violating processes such as the neutrinoless double beta decay and the mu-meson capture, and in the high energy the leptogenesis and the effective interaction which arises in the supersymmetric unified theory. To discuss these phenomena, we used the renormalization group analysis and its analytic solution.In particular, 1. we analyzed various phenomena by assuming the special neutrino mixing scheme at high energy and showed that this model reproduced the experimental data well and gave various predictions especially about 13 element of neutrino mixing matrix and the Dirac CP phase. 2. We investigated the effect of Majorana CP phases on the lepton flavor violation processes and found that the effect is quite important. 3. Various lepton number violating processes and their possibility to be investigated experimentally in the present and the near future experiment, are investigated systematically. 4. The lepton flavor violation in the decay of Higgs particles which are produced in the Linear Collider. 5. The origin of the dark energy is proposed and its possibility is argued.