Phenomenology of Supersymmetric Grand Unified Theories and Standard Model

在这个项目中，我在超对称模型的现象学和基于超对称的模型构建方面得到了以下结果：轻子风味破坏过程的研究。μ→e - γ等轻子风味破坏过程对于寻找睡眠区风味结构具有重要意义。本文研究了超对称大统一理论和跷跷板中微子超对称模型中轻子风味变化过程的各个方面。也就是说，我们计算了这些模型中的μ→e - γ分支比，并讨论了在μ→3e衰变中测量t -奇不对称性、tau衰变中的轻子味违和和对撞机实验中的睡眠子混合的可能性。这些结果对今后轻子风味违背的实验研究有一定的指导意义。从夸克味物理和介子反常磁矩中寻找超对称。我们计算了超对称粒子在B工厂的物理效应、Kano稀有衰变和一些超对称模型的μ子异常磁矩，并讨论了间接搜索超对称的可能性。提出新模式。我们提出了新型的模式。一种模型旨在通过水平对称来解释费米子的质量层次，另一种模型在不同代的标量夸克之间产生大的质量分裂。

In this project I obtained the following results on phenomenology of supersymmetric models and model building based on supersymmetry.1.Study on lepton flavor violation processes.Lepton flavor violating processes such as μ→eγare important in searching for the flavor structure of the slepton sector. Here, we studied various aspects of lepton flavor changing processes in supersymmetric grand unified theories and supersymmetric models with seesaw neutrinos. Namely, we calculated the μ→eγbranching ratio in these models and discussed the possibility of measuring a T-odd asymmetry in the μ→3e decay, lepton flavor violation in tau decays, and the slepton mixing in collider experiments. These results are useful for future experimental searches for the lepton flavor violation.2. Search for supersymmetry from quark flavor physics and the muon anomalous magnetic moment.We calculated the effects of supersymmetric particles in physics at B factory, Kano rare decays, and the muon anomalous magnetic moment for some examples of supersymmetric models, and discussed possibilities of indirect search for supersymmetry.3. Proposal of new models.We proposed new type of models. One model is intended to explain the fermion mass hierarchy by a horizontal symmetry, and the other generates a large mass splitting among scalar quarks with different generations.