Reaction with Exotic Nuclei: Toward a Microscopic Theory

与奇异核的反应：迈向微观理论

• 批准号: 0456656
• 负责人: Filomena Maciel Nunes
• 金额: $ 21.37万
• 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: 2005
• 资助国家: 美国
• 起止时间: 2005-08-01 至 2006-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0456656&HistoricalAwards=false
• 关键词: Reaction; Exotic; Nuclei; Toward; Microscopic

Nuclei with a large neutron or proton excess can beproduced in accelerators and exhibit exotic properties,some of which are crucial for Astrophysics.The properties of these unstable nuclei can be extracted throughreactions with stable targets. It is then clear that, in orderto determine the structure of these nuclei, one needs reliablereaction models. These models should take into account, fromthe start, a realistic picture of the exotic nucleus. One of themost important aspects of these unstable nuclei is the factthat they break up very easily.Several simplifications are usually performed in nuclear reaction models.A questionable one is the assumption that the exotic nucleus (projectile)behaves are two inert fragments, bound together, which can easily breakup.In this project we will develop a new reaction model that goes beyondthis approximation. This new model will incorporate more detail in thedescription of the projectile, allowing all its parts to dynamicallyfeel the influence of the target, as a step toward a microscopictreatment of the reaction.

具有大量中子或质子过剩的原子核可以在加速器中产生，并显示出奇异的性质，其中一些对天体物理至关重要。这些不稳定的原子核的性质可以通过与稳定的靶子反应来提取。很明显，为了确定这些原子核的结构，人们需要可靠的反应模型。这些模型从一开始就应该考虑到奇异核的真实图景。这些不稳定核最重要的一个方面是它们很容易分裂。几种简化通常在核反应模型中执行。一个有问题的假设是，奇异核(射弹)的行为是两个惰性碎片，它们结合在一起，很容易分裂。在这个项目中，我们将发展一个新的反应模型，它超出了这个近似。这一新模型将在对弹丸的描述中纳入更多细节，允许其所有部件动态地感受到目标的影响，作为迈向反应微观处理的一步。