论文标题
在未来的Muon撞机中探测Muon $ g-2 $
Probing Muon $g-2$ at a Future Muon Collider
论文作者
论文摘要
MUON的$（G-2）$中的$4.2σ$差异提供了一个提示，可能表明超出标准模型的物理学正在发挥作用。多TEV量表MUON对撞机为该物理学提供了自然的测试场。在本文中，我们讨论了探测BSM参数空间的潜力，该空间与解决SMEFT语言的$（G-2）_μ$差异一致，并利用拟合在多个能量运行的拟合事件率提供的统计功率。我们的结果表明，包括BSM和SM振幅之间的干扰的重要性，并说明了如何在少数较低的能量下运行的MUON对撞机，并且总收集的亮度较少可以更好地限制相关SMEFT系数的空间，而不是单个高能运行的可能性。
The $4.2σ$ discrepancy in the $(g-2)$ of the muon provides a hint that may indicate that physics beyond the standard model is at play. A multi-TeV scale muon collider provides a natural testing ground for this physics. In this paper, we discuss the potential to probe the BSM parameter space that is consistent with solving the $(g-2)_μ$ discrepancy in the language of the SMEFT, utilizing the statistical power provided by fitting event rates collected running at multiple energies. Our results indicate the importance of including interference between the BSM and the SM amplitudes, and illustrates how a muon collider running at a handful of lower energies and with less total collected luminosity can better significantly constrain the space of relevant SMEFT coefficients than would be possible for a single high energy run.
