标题： 矢量轻子夸克对轻子磁矩的贡献 显示英文标题

标题： Vector leptoquark contributions to lepton dipole moments

摘要： 轻子夸克（LQs）可以对带电轻子的磁偶极矩和电偶极矩做出贡献，目前的实验已经以较高的精度测量了这些量。 我们重新审视对这些观测值有贡献的TeV尺度矢量LQ的参数空间，并研究这些模型如何符合LHC的限制。 我们发现，只有$U_1$和$V_2$可以通过带有$\mathcal O(1)$LQ-夸克-轻子耦合的轻子手性翻转贡献来解释$(a_\mu^{\rm exp} - a_\mu^{\rm SM})$中观察到的正向偏移。 我们还看到这两个LQ如何适应电子偶极矩的测量。 显示英文摘要

摘要： Leptoquarks (LQs) can contribute to the magnetic and electric dipole moments of charged leptons, which the current experiments have measured with good accuracy. We revisit the parameter spaces of TeV-scale vector LQs that contribute to these observables and study how these models fare against the LHC bounds. We find that only $U_1$ and $V_2$ can explain the observed positive shift in $(a_\mu^{\rm exp} - a_\mu^{\rm SM})$ through a lepton chirality-flipping contribution with $\mathcal O(1)$ LQ-quark-lepton coupling. We also see how these two LQs can fit the electron dipole moment measurements.