Research in Strong-Interaction Theory

强相互作用理论研究

• 批准号: 0653312
• 负责人: Richard Furnstahl
• 金额: $ 67.2万
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-08-01 至 2011-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0653312&HistoricalAwards=false
• 关键词: Research; Strong; Interaction; Theory

The physics of the strong interaction, which binds atomic nuclei, is naturally described at low energies using composite protons and neutrons (collectively called hadrons) and at high energies using quarks and gluons, which are their constituents. This project will continue the development of methods to achieve model-independent, computationally efficient, microscopic calculations of nuclei at low energies, and provide insight into the crossover from hadronic to quark-gluon descriptions. It will address forefront problems in nuclear physics, such as the physics of nuclei far from stability, which is relevant for astrophysics and studied at existing and proposed rare-isotope accelerators, with potential applications to nuclear energy and homeland security (through the stockpile stewardship program). A key tool is the "renormalization group", which allows the forces between hadrons to be evolved to more tractable forms. The development of increasingly sophisticated models of quark-hadron duality, as well as improved theoretical tools for the investigation of short-range structures in light nuclei, have strong and direct ties to the experimental program at the Thomas Jefferson National Accelerator Facility.This project will have broader impacts in many ways. There is an emphasis on universal aspects of physical systems, which leads to enhanced collaborations between disciplines (including condensed matter and atomic physics, and quantum chemistry). The training received by undergraduates, graduate students, and postdoctoral research associates in carrying out the project's activities contributes directly to the building of a diverse scientific workforce. The mix of analytical and numerical computation our students and postdocs must employ is excellent preparation for both academic and industrial research. The PI's have successfully mentored several members of under-represented groups, including four who have obtained faculty positions. Undergraduate will be actively involved in the research (with funding by the NSF REU program); all previous REU students who have graduated are either working in industry, or business, or enrolled in professional or graduate school. In addition, outreach efforts will bring interactive science to a wide range of Ohio residents.

结合原子核的强相互作用的物理学，在低能量下使用复合质子和中子（统称为强子），在高能量下使用夸克和胶子，它们是它们的组成部分。该项目将继续开发方法，以实现低能量下原子核的模型无关、计算效率高的微观计算，并提供从强子到夸克-胶子描述的交叉。它将解决核物理学中的前沿问题，例如远离稳定性的核物理学，这与天体物理学有关，并在现有和拟议的稀有同位素加速器中进行研究，并可能应用于核能和国土安全（通过库存管理计划）。 一个关键的工具是“重整化群”，它允许强子之间的力演化成更易处理的形式。日益复杂的夸克-强子二象性模型的发展，以及研究轻核短程结构的理论工具的改进，与托马斯杰斐逊国家加速器设施的实验计划有着密切而直接的联系，该项目将在许多方面产生更广泛的影响。 强调物理系统的普遍性，从而加强学科之间的合作（包括凝聚态和原子物理学以及量子化学）。本科生、研究生和博士后研究人员在开展项目活动中接受的培训直接有助于建设一支多样化的科学工作队伍。我们的学生和博士后必须采用的分析和数值计算的混合是学术和工业研究的良好准备。PI已经成功地指导了几个代表性不足的群体的成员，其中包括四个获得教职的人。本科生将积极参与研究（由NSF REU计划提供资金）;所有以前毕业的REU学生要么在工业或商业领域工作，要么就读于专业或研究生院。此外，外展工作将把互动科学带到广泛的俄亥俄州居民。