Lepton Flavor Violating Processes in Supersymmetric Models

在本项目中，我对各种超对称模型中的轻子风味违背（LFV）过程进行了理论研究，并讨论了未来的实验前景。研究了SU(5)和SO（10）超对称大统一理论（SUSY GUT）中的μ→γ和μ→3e过程。利用极化μ子，我们可以测量关于宇称和时间反转不变性的不对称性，这有助于区分不同的模型。特别是，我展示了SUSY CP阶段的信息将在SU(5)的情况下获得。结果表明，在具有真实的夸克/轻子质量比的SU(5) SUSY GUT模型中，μ→γ分支比可以得到增强。在带有右手中微子的SUSY GUT模型中研究了B和K介子的各种LFV过程和风味变化中性电流（FCNC）过程，并澄清了各种观测值之间的相关性。结果表明，如果我们在tau对产生过程中使用自旋-自旋相关，我们可以搜索到P和T个LFV相互作用的奇量。结合LFV的研究，在SUSY模型中研究了各种FCNC过程和μ子异常磁矩。

In this project I performed theoretical study on lepton flavor violating (LFV) processes in various supersymmetric models and discussed future experimental prospects.1.I studied μ→eγ and μ→3e processes in SU(5) and SO(10) supersymmetric grand unified theories (SUSY GUT). Using polarized muons we can measure asymmetries with respect to parity and time-reversal invariance, which are useful to distinguish different models. In particular, I showed information on SUSY CP phases would be obtained in the SU(5) case.2. It is shown that the μ→eγ branching ratio can be enhanced in a SU(5) SUSY GUT model with realistic quark/lepton mass ratios.3. Various LFV processes and flavor changing neutral current (FCNC) processes in B and K mesons are studied in a SUSY GUT model with right-handed neutrino, and correlation between various observables is clarified.4. It is shown that we can search for P and T odd quantities of LFV interactions, if we use the spin-spin correlation in tau pair production processes.5. Various FCNC processes and the muon anomalous magnetic moment are investigated in SUSY models in connection with study on LFV.