论文标题
在2HDM中解决电子和MUON $ G-2 $
Resolving electron and muon $g-2$ within the 2HDM
论文作者
论文摘要
电子异常磁矩（AMM）的最新精确测量增加了MUON AMM的长期张力，并强烈指向标准模型（BSM）之外的物理学。在这项工作中，我们通过轻标量表从第二个希格斯二倍行中出现，并驻留在$ \ Mathcal {o}（10）$ - mev至$ \ nathcal {o \ mathcal {o}（1）$ - GEV质量范围内，以这些declos和两者的迹象统治了两种范围，并占据了两者的范围，并占据了两种范围的范围，并占据了两次 - 电子分别。这种类型的标量受到许多各种实验性约束的影响，但是，如我们所示，它可以通过逃避所有实验界限来保持充分的光线，并且具有在近距离低能的实验中发现的巨大潜力。此处提供的分析同样适用于任何BSM方案，允许轻标量与带电的Leptons具有相当大的风味 - 双子耦合。除了光标量表外，我们的理论还预测了具有近乎退化的带电标量和伪尺度的存在，它们的质量具有静电量尺度的质量。我们分析了探测新生理学信号在山脉的可能方法，并发现可以通过查看新颖的过程$ pp \ to h^\ pm h^\ pm jj \ to lhc测试这种情况，以实现L^\ pm l^\ pm l^\ pm j j j + {e \！\！\！\！\！\！\！\！\！\！
Recent precise measurement of the electron anomalous magnetic moment (AMM) adds to the longstanding tension of the muon AMM and together strongly point towards physics beyond the Standard Model (BSM). In this work, we propose a solution to both anomalies in an economical fashion via a light scalar that emerges from a second Higgs doublet and resides in the $\mathcal{O}(10)$-MeV to $\mathcal{O}(1)$-GeV mass range yielding the right sizes and signs for these deviations due to one-loop and two-loop dominance for the muon and the electron, respectively. A scalar of this type is subject to a number of various experimental constraints, however, as we show, it can remain sufficiently light by evading all experimental bounds and has the great potential to be discovered in the near-future low-energy experiments. The analysis provided here is equally applicable to any BSM scenario for which a light scalar is allowed to have sizable flavor-diagonal couplings to the charged leptons. In addition to the light scalar, our theory predicts the existence of a nearly degenerate charged scalar and a pseudoscalar, which have masses of the order of the electroweak scale. We analyze possible ways to probe new-physics signals at colliders and find that this scenario can be tested at the LHC by looking at the novel process $pp \to H^\pm H^\pm jj \to l^\pm l^\pm j j + {E\!\!\!\!/}_{T}$ via same-sign pair production of charged Higgs bosons.
