论文标题
MUON的异常磁矩：超越手性增强的标准模型
The Anomalous Magnetic Moment of the Muon: Beyond the Standard Model via Chiral Enhancement
论文作者
论文摘要
MUON的异常磁矩显示标准模型预测的$4.2σ$张力，如果$ e^+e^ - \ to \ text {hadrons} $数据用于Hadronic真空极化。在这些程序中，我们回顾了有关重型新粒子的可能解释。由于必要的效果是Electroweak标准模型贡献的顺序，因此使用TEV规模物理学的可行解释必须涉及增强因子。特别是，可以通过相当大的耦合到Higgs Doublet而不是小型Muon Yukawa耦合来获得偶极子操作员的手性翻转。然后，此类标准模型扩展还可以预测Higgs和$ Z $ -Boson衰减的效果，并取决于新粒子的$ SU（2）_l \ times u（1）_y $表示。在更详细讨论Leptoquark模型的具体示例之前，我们首先回顾了精神增强新物理学的一般案例。
The anomalous magnetic moment of the muon displays a $4.2σ$ tension with the Standard-Model prediction, if $e^+e^-\to \text{hadrons}$ data are used for hadronic vacuum polarization. In these proceedings we review possible explanations of this anomaly in terms of heavy new particles. As the necessary effect is of the order of the electroweak Standard-Model contribution, viable explanations with TeV-scale physics must involve an enhancement factor; in particular, one can obtain the chirality flip of the dipole operator via a sizable coupling to the Higgs doublet instead of the small muon Yukawa coupling. Such Standard-Model extensions then also predict effects in Higgs and $Z$-boson decays to muons, with details depending on the $SU(2)_L\times U(1)_Y$ representations of the new particles. We first review the general case of chirally enhanced new physics, before discussing in more detail the concrete example of leptoquark models.
