论文标题
死还是活着? MUON异常磁矩对3-3-1模型的含义
Dead or Alive? Implications of the Muon Anomalous Magnetic Moment for 3-3-1 Models
论文作者
论文摘要
我们目睹了在智能磁矩中持续令人困惑的异常,即使考虑到大型的不确定性,也无法在标准模型中解释。即将进行新的测量,它可能会引起超出标准模型以外的物理学的$5σ$索赔。由此激励,我们探讨了基于$ su(3)_c \ times su(3)_l \ times u(1)_n $ gauge对称性的五个模型的含义,并将我们的结论带入LHC界限。我们表明,如果循环中有多个重粒子,则在此类模型的背景下发现了先前的结论。此外,考虑到Fermilab的G-2实验瞄准的投影精度,我们将较低的质量界限放在颗粒上,该粒子有助于穆恩异常磁矩,假设否则可以解决异常。最后,我们讨论了这些模型如何与现有界限一致。
We have witnessed a persistent puzzling anomaly in the muon magnetic moment that cannot be accounted for in the Standard Model even considering the large hadronic uncertainties. A new measurement is forthcoming, and it might give rise to a $5σ$ claim for physics beyond the Standard Model. Motivated by it, we explore the implications of this new result to five models based on the $SU(3)_C \times SU(3)_L \times U(1)_N$ gauge symmetry and put our conclusions into perspective with LHC bounds. We show that previous conclusions found in the context of such models change if there are more than one heavy particle running in the loop. Moreover, having in mind the projected precision aimed by the g-2 experiment at FERMILAB, we place lower mass bounds on the particles that contribute to muon anomalous magnetic moment assuming the anomaly is resolved otherwise. Lastly, we discuss how these models could accommodate such anomaly in agreement with existing bounds.