Lepton Flavor Violating Processes in Supersymmetric Models

在这个项目中，我对各种超对称模型中的轻子味破坏过程进行了理论研究，并讨论了未来的实验前景。1.研究了SU(5)和SO(10)超对称大统一理论中的μ→eγ和μ→3E过程。利用极化的缪子，我们可以测量关于宇称和时间反转不变性的不对称性，这对于区分不同的模型是有用的。特别是，我展示了关于SUSY CP相的信息将在SU(5)的情况下获得。结果表明，在具有真实夸克/轻子质量比的SU(5)超对称模型中，μ→eγ分支比可以得到提高。在具有右手中微子的超对称中微子模型中，研究了B介子和K介子中的各种LFV过程和气味变化中性流过程，并阐明了各种观测数据之间的关联。结果表明，如果我们在Tau对的产生过程中使用自旋-自旋关联，我们可以寻找P和T奇数的LFV相互作用。结合LFV的研究，在SUSY模型中研究了不同的FCNC过程和Muon反常磁矩。

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.