Precision measurements with trapped radioactive ions using the Canadian Penning Trap Mass spectrometer and associated ion traps at the Argonne National Laboratory

使用阿贡国家实验室的加拿大彭宁阱质谱仪和相关离子阱对捕获的放射性离子进行精确测量

• 批准号: SAPPJ-2015-00034
• 负责人: Sharma, Kumar
• 金额: $ 10.2万
• 依托单位: University of Manitoba
• 依托单位国家: 加拿大
• 项目类别: Subatomic Physics Envelope - Project
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=591572
• 关键词: Precision; measurements; trapped; radioactive; ions

Precision measurements of the atomic masses of nuclides far from stability provide information on the energy released in the decay and nuclear reactions involving these exotic, short-lived, nuclei. The results are an important ingredient in predicting the rates and pathways of nuclear reactions that power explosive astrophysical events thought to be responsible for the nucleosynthesis of the heavier elements (through the rp-, nu-p- and r-processes). The data also provides a view of nuclear structure in regions where the nuclei have extreme neutron to proton ratios and, provide an opportunity for the study of fundamental symmetries in particle physics theories.

对远离稳定性的核素原子质量的精确测量提供了涉及这些奇异的、短暂的原子核的衰变和核反应中释放的能量的信息。这些结果是预测核反应的速率和路径的重要组成部分，这些核反应为爆炸性天体物理事件提供动力，被认为是较重元素的核合成(通过rp-、nu-p-和r-过程)。这些数据还提供了原子核具有极端中子质子比区域的核结构视图，并为研究粒子物理理论中的基本对称性提供了机会。