论文标题
根据$（g-2）_μ$异常的新物理风味对齐
Flavor alignment of New Physics in light of the $(g-2)_μ$ anomaly
论文作者
论文摘要
解决$ {（g-2）_μ} $异常，并同时与$ {μ\eγ} $上的紧密界限保持一致，这需要在风味空间中精确地对齐Lepton偶极子操作员。我们通过考虑相关运算符的重新归一化组混合来研究标准模型有效场理论中的这种比对条件。我们发现，半抑制的四屈服操作员可能会对$ {（g-2）_μ} $异常产生相当大的贡献，需要与Lepton Dipole Operator和Yukawa耦合紧密地对齐。我们讨论新物理模型如何通过采用特定的动力假设或使用风味对称性来遵守这些严格的条件。
Addressing the ${(g-2)_μ}$ anomaly and simultaneously being consistent with the tight bounds on ${μ\to e γ}$ requires a precise alignment of the lepton dipole operator in flavor space. We investigate this alignment condition in the Standard Model Effective Field Theory by considering the Renormalization Group mixing of the relevant operators. We find that semileptonic four-fermion operators, which are likely to yield a sizable contribution to the ${(g-2)_μ}$ anomaly, need to be tightly aligned to the lepton dipole operator and Yukawa coupling. We discuss how New Physics models can comply with these stringent conditions by employing particular dynamical assumptions or using flavor symmetries.
