论文标题
在搜索MUON电偶极矩时，使用冷冻自旋技术效果
Systematic effects in the search for the muon electric dipole moment using the frozen-spin technique
论文作者
论文摘要
在Paul Scherrer Institute（PSI），我们正在开发一种高精度工具来测量Muon电动偶极矩（EDM）。该实验基于冷冻自旋方法，其中抑制了由异常磁矩诱导的自旋进动，从而增加了EDM信号的信噪比，以实现使用常规的$ G-2 $ MUON存储环，否则无法实现灵敏度。一年获取数据后，EDM的预期统计灵敏度为$ 6 \ times 10^{ - 23} e \ cdot $ cm，$ p = 125 $ meV/c mev/c muon beam在PSI上可用。达到这个目标需要对模仿EDM信号的伪造效应进行全面分析。这项工作讨论了在搜索MUON EDM时研究冷冻旋转方法的系统效应的定量方法。通过仿真来分析和验证实验系统电磁场中MUON自旋运动的方程式。
At the Paul Scherrer Institute (PSI) we are developing a high precision instrument to measure the muon electric dipole moment (EDM). The experiment is based on the frozen-spin method in which the spin precession induced by the anomalous magnetic moment is suppressed, thus increasing the signal-to-noise ratio for EDM signals to achieve a sensitivity otherwise unattainable using conventional $g-2$ muon storage rings. The expected statistical sensitivity for the EDM after a year of data taking is $6\times 10^{-23} e\cdot$cm with the $p = 125$ MeV/c muon beam available at the PSI. Reaching this goal necessitates a comprehensive analysis on spurious effects that mimic the EDM signal. This work discusses a quantitative approach to study systematic effects for the frozen-spin method when searching for the muon EDM. Equations for the motion of the muon spin in the electromagnetic fields of the experimental system are analytically derived and validated by simulation.
