论文标题

Muon和Electron $ G-2 $和Lepton Masses in tagin Models

Muon and electron $g-2$ and lepton masses in flavor models

论文作者

Calibbi, Lorenzo, López-Ibáñez, M. L., Melis, Aurora, Vives, Oscar

论文摘要

The stringent experimental bound on $μ\rightarrow e γ$ is compatible with a simultaneous and sizable new physics contribution to the electron and muon anomalous magnetic moments $(g-2)_\ell$ ($\ell=e,\,μ$), only if we assume a non-trivial flavor structure of the dipole operator coefficients.我们提出了一种机制,其中$(g-2)_ \ ell $校正的实现显然与质量对称性相关。辐射黄酮对费米亚质量的校正为异常磁矩做出了贡献。在此框架中,我们引入了来自非平凡的$ \ MATHCAL {O}(1)$ Quartic耦合标量电位的手性增强。我们表明,可以在参数空间的广大区域同时解释MUON和电子异常,并具有预测的矢量样质量介体,质量为$M_χ\ \ in [0.6,2.5] $ 〜TEV。

The stringent experimental bound on $μ\rightarrow e γ$ is compatible with a simultaneous and sizable new physics contribution to the electron and muon anomalous magnetic moments $(g-2)_\ell$ ($\ell=e,\,μ$), only if we assume a non-trivial flavor structure of the dipole operator coefficients. We propose a mechanism in which the realization of the $(g-2)_\ell$ correction is manifestly related to the mass generation through a flavor symmetry. A radiative flavon correction to the fermion mass gives a contribution to the anomalous magnetic moment. In this framework, we introduce a chiral enhancement from a non-trivial $\mathcal{O}(1)$ quartic coupling of the scalar potential. We show that the muon and electron anomalies can be simultaneously explained in a vast region of the parameter space with predicted vector-like mediators of masses as large as $M_χ\in [0.6,2.5]$~TeV.

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