Research in Strong-Interaction Theory

强相互作用理论研究

• 批准号: 1306250
• 负责人: Richard Furnstahl
• 金额: $ 68.82万
• 依托单位: Ohio State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-09-01 至 2017-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1306250&HistoricalAwards=false
• 关键词: Research; Strong; Interaction; Theory

Experiments at rare isotope beam facilities open the door to new regions of exotic nuclei. Data gathered at these facilities is essential for accurate extrapolations of the equation of state of nucleonic matter in density, temperature, and proton fraction and is expected to impact the direct comparison of astrophysical observations with results of sophisticated simulations of neutron stars and supernovae. The projects funded by this award address fundamental theoretical aspects of nuclear physics using effective field theory and renormalization group methods to develop a systematic expansion of nuclear forces and decouple troublesome high-energy contributions from the low-energy parts we want to describe. The results are controlled, model-independent calculations that can exploit efficiently the steady improvements in computing power. The training received by undergraduates, graduate students, and postdoctoral research associates in carrying out the proposed activities contributes directly to the building of a diverse scientific workforce. The mix of analytical and numerical computation employed is excellent preparation for both academic and industrial research. The emphasis on universal aspects of physical systems, fostered by effective field theory and renormalization group approaches, as well as the direct application of techniques to problems beyond the nuclear domain, leads to enhanced collaborations between disciplines. Broader training in low-energy nuclear theory for both theorists and experimentalists is provided by participation in the TALENT (Training in Advanced Low Energy Nuclear Theory) initiative.

在稀有同位素束设施上进行的实验打开了通向奇异核新区域的大门。这些设施收集的数据对于准确推断核子物质的密度、温度和质子分数的状态方程至关重要，预计将影响天体物理观测结果与中子星和超新星复杂模拟结果的直接比较。该奖项资助的项目涉及核物理的基本理论方面，使用有效场论和重整化群方法来开发核力的系统扩展，并将我们想要描述的低能部分与麻烦的高能贡献解耦。结果是受控的，独立于模型的计算，可以有效地利用计算能力的稳定提高。本科生、研究生和博士后研究人员在开展拟议活动时接受的培训直接有助于建设一支多样化的科学工作队伍。所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。强调物理系统的普遍性，通过有效的场论和重整化群方法，以及技术的直接应用到核领域以外的问题，导致加强学科之间的合作。通过参加TALENT（高级低能核理论培训）倡议，为理论工作者和实验工作者提供了更广泛的低能核理论培训。