用于高灵敏度搜寻中子电偶极矩的光泵浦铯磁强计
原子物理
2020-05-20 v3 高能物理 - 实验
核实验
摘要
一个由十六个激光泵浦标量铯磁强计组成的阵列是2015和2016年在保罗·谢勒研究所获取数据的 neutron electric dipole moment (nEDM，中子电偶极矩) 实验的一部分。它用于测量实验磁场的梯度并监测其时间演化。该阵列的新颖性在于其紧凑设计，其中单个近红外二极管激光器驱动位于高真空室中的所有磁强计，部分传感器安装在高压电极上。我们描述了铯传感器的构造细节和工作模式，强调磁场读出的准确性和灵敏度。我们给出了直接有益于nEDM实验的磁强计阵列的两个应用：(i) 实施校正垂直磁场梯度漂移的策略，以及 (ii) 均化磁场的程序。前者减小了新nEDM结果的不确定性。后者使横向中子自旋弛豫时间超过1500 s，将nEDM实验的统计灵敏度提高约35%，并有效将nEDM数据获取速率提高了1.8倍。
引用
@article{arxiv.1912.04631,
title = {Optically Pumped Cs Magnetometers Enabling a High-Sensitivity Search for the Neutron Electric Dipole Moment},
author = {C. Abel and S. Afach and N. J. Ayres and G. Ban and G. Bison and K. Bodek and V. Bondar and E. Chanel and P. -J. Chiu and C. B. Crawford and Z. Chowdhuri and M. Daum and S. Emmenegger and L. Ferraris-Bouchez and M. Fertl and B. Franke and W. C. Griffith and Z. D. Grujić and L. Hayen and V. Hélaine and N. Hild and M. Kasprzak and Y. Kermaidic and K. Kirch and P. Knowles and H. -C. Koch and S. Komposch and P. A. Koss and A. Kozela and J. Krempel and B. Lauss and T. Lefort and Y. Lemière and A. Leredde and A. Mtchedlishvili and P. Mohanmurthy and M. Musgrave and O. Naviliat-Cuncic and D. Pais and A. Pazgalev and F. M. Piegsa and E. Pierre and G. Pignol and P. N. Prashanth and G. Quéméner and M. Rawlik and D. Rebreyend and D. Ries and S. Roccia and D. Rozpedzik and P. Schmidt-Wellenburg and A. Schnabel and N. Severijns and R. Tavakoli Dinani and J. Thorne and A. Weis and E. Wursten and G. Wyszynski and J. Zejma and G. Zsigmond},
journal= {arXiv preprint arXiv:1912.04631},
year = {2020}
}