Studies of Nuclear Reactions and Structure

核反应和结构研究

• 批准号: 0456463
• 负责人: Samuel Tabor
• 金额: --
• 依托单位: Florida State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-07-01 至 2009-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0456463&HistoricalAwards=false
• 关键词: Studies; Nuclear; Reactions; Structure

We propose to carry out a broad program in nuclear physics research following closely the national priorities determined by the DOE-NSF Nuclear Science Advisory Committee. Much of the research will be carried out with the new RESOLUT rare isotope facility at the Florida State University Superconducting Accelerator Laboratory. This will be directed toward astrophysical studies related to the rapid proton capture process in nucleosynthesis, experimental investigation of the structure of very light nuclei for comparison with forefront ab-initio theoretical calculations, and exploration of how the fundamental shell structure ("magic numbers") in atomic nuclei changes with large proton or neutron excess. Closely related, complementary experiments will also be carried out at the National Superconducting Accelerator Laboratory. The unique FSU polarized lithium beam will also be used to characterize reactions of astrophysical interest. A new type of motion in highly deformed, rapidly rotating nuclei will be explored with Gammasphere at the ATLAS facility. The FSU group constructed a major part of the PHENIX detector at the Relativistic Heavy Ion Collider and now proposes to study the production of J/PSI particles to test how closely the experiments are able to reproduce the quark-gluon plasma that existed in the earliest times of the Big Bang. Other members of the FSU group propose to search for new elementary particles whose unique quantum numbers will clearly prove that they involve excitations of the gluons. Such particles are predicted by the best current models of quarks and gluons, but have not been conclusively seen before. The experiment will be performed at Jefferson Laboratory, which has already approved it with a high rating.

我们建议在DOE-NSF核科学咨询委员会确定的国家优先事项之后，在核物理研究方面开展广泛的计划。 大部分研究将与佛罗里达州立大学超导加速器实验室的新的解决方案稀有同位素设施进行。 这将针对与核合成中快速质子捕获过程相关的天体研究，对非常光核的结构进行了实验研究，以与前沿AB-Initio理论计算进行比较，以及探索基本壳结构（“魔法数量”）在原子核中如何随大质子或中子多余的核所变化。 密切相关的互补实验也将在国家超导加速器实验室进行。 独特的FSU极化锂束也将用于表征天体物理兴趣的反应。 在Atlas设施的伽马球将探索高度变形，快速旋转核中一种新型运动。 FSU组在相对论重离子对撞机上构建了Phenix探测器的主要部分，现在建议研究J/PSI颗粒的产生，以测试实验能够在大爆炸最早发生的夸克 - 蛋白等离子体上重现Quark-Gluon等离子体的程度。 FSU组的其他成员建议搜索新的基本颗粒，其独特的量子数清楚地证明它们涉及胶子的激发。 这些颗粒是由当前最佳夸克和胶子模型预测的，但以前尚未见过。 该实验将在杰斐逊实验室进行，该实验室已经以很高的评分批准了它。