arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0909.1095physics.atom-ph
收藏

潘宁陷阱作为基础物理精确实验的通用工具

Penning traps as a versatile tool for precise experiments in fundamental physics

K. Blaum, Yu. N. Novikov, G. Werth

摘要:

这篇综述文章描述了带电粒子的捕获。简述了从基本粒子到重原子的各种物质的电磁约束的主要原理。与捕获的单粒子,以及频率测量的方法,提供前所未有的精度,准备和操纵进行了讨论。介绍了潘宁陷阱在基础物理中的独特应用。对基本粒子(电子、正电子、质子和反质子)的质量和磁矩的超精密陷阱测量证实了CPT守恒,并允许精确确定精细结构常数α和其他基本常数。这与从原子质量的陷阱测量中得到的夸克混合矩阵的么正性信息一起,用于评估物理世界的标准模型。本文还介绍了针对天体物理和核物理中一些前沿问题的核素质量直接测量方法。

英文摘要:

This review article describes the trapping of charged particles. The main principles of electromagnetic confinement of various species from elementary particles to heavy atoms are briefly described. The preparation and manipulation with trapped single particles, as well as methods of frequency measurements, providing unprecedented precision, are discussed. Unique applications of Penning traps in fundamental physics are presented. Ultra-precise trap-measurements of masses and magnetic moments of elementary particles (electrons, positrons, protons and antiprotons) confirm CPT-conservation, and allow accurate determination of the fine-structure constant alpha and other fundamental constants. This together with the information on the unitarity of the quark-mixing matrix, derived from the trap-measurements of atomic masses, serves for assessment of the Standard Model of the physics world. Direct mass measurements of nuclides targeted to some advanced problems of astrophysics and nuclear physics are also presented.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑