基于 TRIUMF 高强度超冷中子源的中子电偶极矩实验
仪器与探测器
2026-03-23 v3 高能物理 - 实验
核实验
原子物理
摘要
TRIUMF 超冷中子高级中子 (TUCAN) 联合实验小组正在开发一个高强度超冷中子 (UCN) 源，旨在搜索中子电偶极矩 (EDM)，其灵敏度目标为 。本文报告了近期在超冷中子源 commissioning 以及中子 EDM 光谱仪开发方面的进展。最终配置下的加速器驱动的超热 UCN 源将使中子 EDM 实验的统计学获得两个数量级的提升。2024 年，联合实验小组实现了完整源系统的运行（除液氦氘冷中子 moderator 外），实现了首次的 UCNs 生产。同时也展示了 EDM 光谱仪的状态，重点强调了与场控、屏蔽和磁测量相关的 UCNs 处理组件和磁子系统。
引用
@article{arxiv.2507.05278,
title = {Neutron EDM Experiment with an Advanced Ultracold Neutron Source at TRIUMF},
author = {T. Higuchi and B. Algohi and D. Anthony and L. Barrón-Palos and M. Bradley and A. Brossard and T. Bui and J. Chak and R. Chiba and C. Davis and R. de Vries and K. Drury and D. Fujimoto and R. Fujitani and M. Gericke and P. Giampa and R. Golub and T. Hepworth and G. Ichikawa and S. Imajo and A. Jaison and B. Jamieson and M. Katotoka and S. Kawasaki and M. Kitaguchi and W. Klassen and E. Korkmaz and E. Korobkina and M. Lavvaf and T. Lindner and N. Lo and S. Longo and K. Madison and Y. Makida and J. Malcolm and J. Mammei and R. Mammei and Z. Mao and C. Marshall and J. W. Martin and M. McCrea and E. Miller and M. Miller and K. Mishima and T. Mohammadi and T. Momose and T. Okamura and H. J. Ong and R. Patni and R. Picker and K. Qiao and W. D. Ramsay and W. Rathnakela and D. Salazar and J. Sato and W. Schreyer and T. Shima and H. M. Shimizu and S. Sidhu and S. Stargardter and P. Switzer and I. Tanihata and Tushar and S. Vanbergen and W. T. H. van Oers and Y. Watanabe and N. Yazdandoost and Q. Ye and A. Zahra and M. Zhao},
journal= {arXiv preprint arXiv:2507.05278},
year = {2026}
}
备注
Presented at the Tenth Meeting on CPT and Lorentz Symmetry, Bloomington, Indiana, May 15-19, 2025