Theory of atomic processes and interactions

原子过程和相互作用理论

• 批准号: 5912-2011
• 负责人: Drake, Gordon
• 金额: $ 5.03万
• 依托单位: University of Windsor
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=544300
• 关键词: Theory; atomic; processes; interactions

The unifying theme of this proposal is the development of new measurement tools through the combined application of both high precision theory and experiment to atoms. Two examples are a significant new value for the fine structure constant, which is one of the fundamental constants of nature, and table-top measurements of the size of exotic atomic nuclei. Recent successes at Argonne (U.S.), GSI (Germany) and TRIUMF (Canada) have focused on the so-called neutron-rich "halo" nuclei with extra planetary neutrons, such as He-6. The significance of the results is that they enable one to distinguish amongst the various theoretical models proposed for the effective forces holding the nucleus together. By studying structures that fall apart easily, we learn about the forces holding them together. A fascinating new project for the future involves a search for new physics beyond the standard model of elementary particles, as revealed by angular correlations following beta decay of the halo nucleus.

该提案的统一主题是通过将高精度理论和实验结合应用于原子来开发新的测量工具。 两个例子是精细结构常数的一个重要的新值，这是自然界的基本常数之一，以及奇异原子核大小的桌面测量。 最近在阿贡（美国）取得的成功，GSI（德国）和TRIUMF（加拿大）重点研究了所谓的富中子“晕”核，这些核具有额外的行星中子，如He-6。 这些结果的意义在于，它们使人们能够区分为将原子核结合在一起的有效力而提出的各种理论模型。 通过研究那些容易破裂的结构，我们可以了解将它们连接在一起的力量。 未来一个迷人的新项目涉及寻找基本粒子标准模型之外的新物理，正如晕核β衰变后的角相关所揭示的那样。