Precision Electromagnetic Studies of the Structure of Few Body Nuclei and Nucleons at Jefferson Lab

杰斐逊实验室对少数体核和核子结构的精密电磁研究

• 批准号: 0244422
• 负责人: Konrad Aniol
• 金额: $ 59.7万
• 依托单位: California State L A University Auxiliary Services Inc.
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-07-01 至 2007-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0244422&HistoricalAwards=false
• 关键词: Precision; Electromagnetic; Studies; Structure; Few

The nuclear physics group at California State University, Los Angeles,studies nuclear structure of low mass nuclei and the structure of theneutron and proton. These studies use the high energy electronaccelerator at Thomas Jefferson National Laboratory, and similar lowerenergy accelerators at other sites. In the present research period wewill be leading a group to study the nuclear structure of the mostcommon isotope of helium, helium-4. Helium-4 is an excellent laboratoryfor testing theoretical models of how neutrons, protons and exoticparticles combine to form the nuclear ground state. Helium-4 is also ofparticular interest because about 25% of the visible mass in theuniverse is bound up in helium-4 nuclei. Understanding this nucleus willtell us something significant about a large component of the visibleuniverse, as well as serve as a testing ground for nuclear theories.Undergraduate students and graduate students are significantly involvedwith our research. These students participate in the research inmeaningful ways, working directly with us or in teams. They will do andhave done data reduction and analysis, contributed to the constructionof experimental equipment for approved experiments, participated inrunning the experiments, and learned how to use Monte Carlo simulationtechniques in understanding complex pieces of apparatus. Our goal is tobring students into a research experience as soon as possible in theircollege careers. This experience serves our students well, either ifthey decide to go on to graduate level research, or to enter industry,where their background in team work to solve complex problems will be anadvantage. High School science teachers have also contributed to ourresearch effort by doing data reduction and analysis. We hope to have ateacher do a Master's thesis in physics using our data.

位于洛杉矶的加州州立大学的核物理小组研究低质量原子核的核结构以及中子和质子的结构。这些研究使用了托马斯杰斐逊国家实验室的高能电子加速器和其他地点的类似低能加速器。在目前的研究阶段，我们将领导一个小组研究氦的最常见的同位素氦-4的核结构。氦-4是一个很好的实验室，可以用来测试中子、质子和奇异粒子如何联合收割机形成核基态的理论模型。氦-4也特别令人感兴趣，因为宇宙中大约25%的可见质量被束缚在氦-4核中。了解这个原子核将告诉我们一些关于可见宇宙的重要组成部分，同时也是核理论的试验场。本科生和研究生都积极参与了我们的研究。这些学生以无意义的方式参与研究，直接与我们合作或团队合作。他们将做和已经做了数据简化和分析，有助于实验设备的批准实验的建设，参与运行实验，并学会了如何使用蒙特卡洛模拟技术在理解复杂的设备。 我们的目标是让学生在他们的大学生涯中尽快进入研究体验。这种经验很好地为我们的学生服务，无论是如果他们决定继续研究生水平的研究，还是进入行业，他们在团队合作解决复杂问题的背景将是一个优势。高中科学教师也通过做数据简化和分析为我们的研究工作做出了贡献。我们希望有一个老师用我们的数据做物理学硕士论文。