论文标题
在Muone实验中探测轻型介体
Probing light mediators at the MUonE experiment
论文作者
论文摘要
旨在通过弹性Muon-Electron散射对MUON $ G-2 $贡献的Hadronic真空极化贡献进行精确测量的Muone实验也具有探索新物理学的参数空间。利用该过程$μ^ - n \至μ^ - n x $，其中$ n $是目标核，x是一个新的物理光中介器，我们证明Muone可以对Sub-Gev Dark Photons的参数空间敏感。特别是，由于其MUON光束，Muone将能够探索$L_μ-L_τ$型号的未知参数空间区域。最后，我们还发现Muone可以探测轴状颗粒的参数空间，以了解对电子，MUON和光子的耦合的不同假设。
The MUonE experiment, that aims to provide a precise measurement of the hadronic vacuum polarization contribution to the muon $g-2$ via elastic muon-electron scattering, has also the potential to explore the parameter space of light new physics. Exploiting the process $μ^- N \to μ^- N X$, where $N$ is the target nucleus and X is a new physics light mediator, we demonstrate that MUonE can be sensitive to new regions of parameter space for sub-GeV dark photons. In particular, thanks to its muon beam, MUonE will be able to explore uncharted parameter space regions for the $L_μ-L_τ$ model. Finally, we also find that MUonE can probe the parameter space of axion-like particles for different assumptions of the couplings to electrons, muons and photons.
