Nuclear Physics with Electromagnetic Probes at Jefferson Lab

杰斐逊实验室的电磁探针核物理

• 批准号: 1306153
• 负责人: Paul Stoler
• 金额: $ 10万
• 依托单位: Rensselaer Polytechnic Institute
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-07-01 至 2016-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1306153&HistoricalAwards=false
• 关键词: Nuclear; Physics; Electromagnetic; Probes; Jefferson

This research is part of a large effort in the Hall A experimental research area at Jefferson Laboratory. Our scientific interest is to help constrain the so-called "equation of state" of nuclear matter, a critical ingredient to understanding the makeup of dense stars. We do this by scattering a beam of polarized electrons from the nuclei of lead atoms, where the dependence of the scattering probability on polarization direction tells us the average distribution of neutrons in this large, spherical nucleus. The contribution funded here is for a precision apparatus that would tell us the degree of polarization of the electron beam. Such an apparatus is also critical for a large number of different experiments in Hall A, and is consequently a service to the nuclear physics community. The scientific impact on the nuclear physics and nuclear astrophysics communities is very large, and the work is carried out with a number of students in various disciplines, at different levels. Consequently, students gain training not only in nuclear physics, but in magnetic transport applications and precision engineering, both as undergraduates and graduate students.

这项研究是杰斐逊实验室A厅实验研究区的一项重大努力的一部分。我们的科学兴趣是帮助限制所谓的核物质“状态方程”，这是理解致密恒星组成的关键因素。我们通过从铅原子核散射一束极化电子来实现这一点，其中散射概率对极化方向的依赖性告诉我们中子在这个大的球形核中的平均分布。这里资助的捐款是为了一个精密的仪器，可以告诉我们电子束的偏振度。这样的设备对于A厅的大量不同实验也至关重要，因此是对核物理界的服务。对核物理和核天体物理界的科学影响是非常大的，这项工作是与不同学科、不同层次的一些学生一起进行的。因此，学生不仅在核物理方面获得培训，而且在磁输运应用和精密工程方面获得培训，无论是本科生还是研究生。