论文标题
用于EDM搜索的准冻结旋转晶格的旋转动力学调查
Spin Dynamics Investigation of Quasi-Frozen Spin Lattice for EDM Searches
论文作者
论文摘要
YU提出了准冻结（QFS）方法。 Senichev等。在[1]中，作为冷冻自旋（FS）方法[2]的替代方案，用于搜索Deuteron电动偶极矩（DEDM）。 QFS方法简化了晶格的设计。特别是，对当前操作的舒适存储环的小更改将满足QFS条件。旋转的分解性和系统误差从根本上限制了EDM信号检测和测量。我们的QFS实施方法包括在（1）更改场极性时校准磁场的水平平面中的自旋进液测量，以及（2）垂直平面以搜索EDM。为了解决由于元素未对准而导致的系统错误，我们在向前和反向方向上跟踪粒子束。我们在舒适的Infinity中对两个QF和一个FS晶格进行了建模和跟踪。这些模型包括磁性偶极子以及静电和磁场元素的正态分布随机变体旋转踢。我们使用Wolfram Mathematica程序部分自动化晶格输入文件生成和跟踪输出数据分析。我们观察到QFS方法是FS方法的可行替代方案。 [1） [2] D. Anastassopoulos等人，AGS建议：在$ 10^{ - 29} \：E \ CDOT \ CDOT \ CDOT \ MATHRM {CM {CM} $，BNL报告，Brookhaven National Laboration，Upton，Upton，NY（2008）（2008年）。
The Quasi-Frozen Spin (QFS) method was proposed by Yu. Senichev et al. in [1] as an alternative to the Frozen Spin (FS) method [2] for the search of deuteron electric dipole moment (dEDM). The QFS approach simplifies the design of the lattice. In particular, small changes to the currently operating COSY storage ring will satisfy the QFS condition. Spin decoherence and systematic errors fundamentally limit EDM signal detection and measurement. Our QFS implementation method includes measurement of spin precession in (1) the horizontal plane to calibrate the magnetic field when changing field polarity and (2) the vertical plane to search for EDM. To address systematic errors due to element misalignments, we track particle bunches in forward and reverse directions. We modeled and tracked two QFS and one FS lattice in COSY INFINITY. The models include normally distributed random variate spin kicks in magnetic dipoles and combined electrostatic and magnetic field elements. We used Wolfram Mathematica programs to partially automate lattice input file generation and tracking output data analysis. We observed indications that the QFS method is a viable alternative to the FS method. [1] Y. Senichev, A. Lehrach, B. Lorentz, R. Maier, S. Andrianov, A. Ivanov, S. Chekmenev, M. Berz, and E. Valetov (on behalf of the JEDI Collaboration), in Proceedings of IPAC 2015, Richmond, VA (2015) MOPWA044. [2] D. Anastassopoulos et al., AGS Proposal: Search for a Permanent Electric Dipole Moment of the Deuteron Nucleus at the $10^{-29}\:e\cdot\mathrm{cm}$ Level, BNL Report, Brookhaven National Laboratory, Upton, NY (2008).
