Flavor physics in supersymmetric models

1. 超对称模型中的B物理B介子衰变中的scp破坏和Flavor变化中性电流过程提供了一种间接但强大的方法来寻找超越标准模型的新粒子和新相互作用。本研究在基于大统一和风味对称的超对称模型中计算了各种B衰变可观测量，并阐明了如何通过组合各种B观测量来区分不同的模型。此外，包括最终tau粒子在内的B衰变过程对带电希格斯玻色子的存在敏感，包括由于超对称粒子引起的量子修正。研究结果可用于超B工厂规划的KEK和SLAC工作。轻子风味破坏过程的现象学。寻找轻子味性违逆是味性物理中寻找新物理效应的另一个重要途径。在这里，我们在一般框架下发展了tau轻子风味违反和mu-e转换的现象学。此外，在超对称跷跷板模型中计算了μ子轻子风味违背过程，并指出在一个特殊的参数区域中，μ -e转换过程尤为重要。希格斯粒子的物理学希格斯物理学将在未来几年成为粒子物理学的中心问题。在这里，我们考虑在未来的正电子线性对撞机实验中测量希格斯势，并通过研究双希格斯双重态模型和超对称模型的例子来阐明其在新物理搜索和电弱重子生成中的意义。

1. B Physics in supersymmetric modelsCP violation and Flavor changing neutral current processes in B meson decays provide an indirect but powerful method to search for new particles and new interactions beyond the Standard Model. In this research, various B decay observable quantities are calculated in supersymmetrc models based on grand unification and flavor symmetry, and clarify how to distinguish different models by combining various B observables. In addition, B decay processes including final tau particles, which is sensitive to existence of a charged Higgs boson, are evaluated including quantum corrections due to supersymmetric particles. The results of these researches are used for KEK and SLAC efforts of Super B Factory planning.2. Phenomenology of lepton flavor violating processes.Search for lepton flavor violation is another important way to look for new physics effects in flavor physics. Here, we develop phenomenology of tau lepton flavor violation and mu-e conversion in nuclei in general framework. Furthermore, muon lepton flavor violating processes are calculated in supersymmetric see-saw model, and it is pointed out that the mu-e conversion process is particularly important in a special parameter region.3. Physics of Higgs particleHiggs physics will become a central issue in particle physics in coining years. Here, we consider measurement of the Higgs potential in future electron positron linear collider experiments, and clarify its meanings in new physics search and electroweak baryogenesis by studying examples of a two Higgs doublet model and a supersymmetric model.