论文标题
LANL UCN设施的新超低中子梁线的表征
Characterization of the new Ultracold Neutron beamline at the LANL UCN facility
论文作者
论文摘要
目前正在Los Alamos国家实验室（LANL）开发的中子电偶极矩（NEDM）实验将使用Ultrocold中子（UCN）和Ramsey的分离振荡场的方法来寻找NEDM。在本文中，我们介绍了在LANL UCN源进行新的光束线期间进行的UCN存储和UCN传输的测量值，并演示了足够数量的储存的偏振UCN，以实现$ΔD_N= 2 \ 2 \ times times times times times times 10^{-27}} $ \ cdot \ cdot \ cdot \ cdot \ cdot \ cdot fext fext {cm} $的统计不确定性。我们还提出了一个分析模型，该模型描述了数据，该数据提供了新梁线上输入UCN能量谱的简单参数化。
The neutron electric dipole moment (nEDM) experiment that is currently being developed at Los Alamos National Laboratory (LANL) will use ultracold neutrons (UCN) and Ramsey's method of separated oscillatory fields to search for a nEDM. In this paper, we present measurements of UCN storage and UCN transport performed during the commissioning of a new beamline at the LANL UCN source and demonstrate a sufficient number of stored polarized UCN to achieve a statistical uncertainty of $δd_n = 2\times 10^{-27}$~$e\cdot\text{cm}$ in 5 calendar years of running. We also present an analytical model describing data that provides a simple parameterization of the input UCN energy spectrum on the new beamline.
