论文标题
对Lepton MDM的两个循环校正的顺序分析
The order analysis for the two loop corrections to lepton MDM
论文作者
论文摘要
Lepton的磁偶极矩（MDM）的实验数据（$ e $，$μ$）非常精确。实验数据和标准模型预测之间的偏差可能来自新的物理贡献。 在超对称模型中，有很多两个循环图为Lepton MDM造成。在超对称模型中，我们假设两个质量尺度$ m_ {sh} $和$ m $，$ m_ {sh} \ gg m $用于超对称粒子。 Squarks属于$ M_ {SH} $，其他超对称粒子属于$ M $。我们分析了两个循环图的贡献顺序。两个环三角图对应于两个循环自我能量图满足病房身份，它们的贡献具有特殊的因素。这项工作可以帮助区分重要的两个环图，从而对Lepton MDM进行更正。
The experimental data of the magnetic dipole moment(MDM) of lepton($e$, $μ$) is very exact. The deviation between the experimental data and the standard model prediction maybe come from new physics contribution. In the supersymmetric models, there are very many two loop diagrams contributing to the lepton MDM. In supersymmetric models, we suppose two mass scales $M_{SH}$ and $M$ with $M_{SH}\gg M$ for supersymmetric particles. Squarks belong to $M_{SH}$ and the other supersymmetric particles belong to $M$. We analyze the order of the contributions from the two loop diagrams. The two loop triangle diagrams corresponding to the two loop self-energy diagram satisfy Ward-identity, and their contributions possess particular factors. This work can help to distinguish the important two loop diagrams giving corrections to lepton MDM.
