Heavy-Ion Reactions and Nuclear Structure

重离子反应和核结构

• 批准号: 9605207
• 负责人: B. Alex Brown
• 金额: $ 112万
• 依托单位: Michigan State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-06-01 至 2000-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9605207&HistoricalAwards=false
• 关键词: Heavy; Ion; Reactions; Nuclear; Structure

We propose to develop new theoretical models for the prediction of nuclear structure properties. These models will be applied to exotic nuclei at the extreme limits of stability, which are studied at the National Superconducting Cyclotron Laboratory (NSCL) and other radioactive beam laboratories. They will also be applied to the properties of nuclei at high excitation energy, where the unsolved problems of many-body quantum chaos become important. These models are needed for the prediction of astrophysically important nuclear reaction rates, as well as for the interpretation of electroweak interactions in nuclei. We also propose to develop models for nuclear collisions at energies between the nuclear binding energy and the highest energies experimentally available. These collisions are of extreme interest, because they hold the promise to reveal the existence of phase transitions of nuclear and quark matter. This is relevant to understanding the history of the early universe as well as the interior of stars. Our work is in direct support of experiments at the NSCL and the Relativistic Heavy Ion Collider. Our work directly relates to two of the highest three priorities identified by the nuclear physics long-range plan. Aspects of our work are computationally intensive and will make use of state-of-the- art facilities.

我们建议发展新的理论模型来预测核结构性质。这些模型将应用于处于极端稳定性极限的奇异原子核，国家超导回旋加速器实验室(NSCL)和其他放射性束流实验室正在对其进行研究。它们还将应用于高激发能核的性质，在那里多体量子混沌的悬而未决的问题变得重要。这些模型对于预测天体物理上重要的核反应速率以及解释原子核中的电弱相互作用是必要的。我们还建议建立在核结合能和实验上可用的最高能量之间的能量处的核碰撞模型。这些碰撞非常有趣，因为它们有望揭示核物质和夸克物质相变的存在。这对于理解早期宇宙的历史以及恒星的内部都是相关的。我们的工作直接支持NSCL和相对论重离子对撞机的实验。我们的工作与核物理长期计划确定的三个最高优先事项中的两个直接相关。我们工作的方方面面都是计算密集型的，将利用最先进的设施。