Investigations in the Microscopic Theory of Nuclear Structure and Reactions

核结构与反应微观理论研究

• 批准号: 9603126
• 负责人: Dean Halderson
• 金额: $ 0.63万
• 依托单位: Western Michigan University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-04-15 至 1998-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9603126&HistoricalAwards=false
• 关键词: Investigations; Microscopic; Theory; Nuclear; Structure

Projects are proposed in two areas of nuclear theory. The first area concerns the structure of nuclei above the threshold for emitting constituent nucleons. Development of nuclear models for this energy region provide a means of analyzing and correlating data from nucleon scattering experiments and experiments in which a nucleon is knocked out from a nucleus by a variety of probes, such a electrons and mesons. These investigations provide information on the structure of nuclei at high excitation and the distribution of nucleons within nuclei. The second area is hypernuclear physics. Hypernuclei contain at least one baryon with non-zero strangeness or charm. Although their lifetimes are very short, hypernuclei provide a laboratory for determining the interaction of exotic baryons with nucleons and with each other. They also provide the only practical means for studying a particular decay mode for the strange baryons. This decay mode, unlike the decay of a free strange baryon, is one in which no mesons are produced. Investigations are proposed for both determining the interactions of these exotic baryons and the mechanism for non-mesonic decay.

在核理论的两个领域提出了项目。 第一个领域涉及到超过发射组成核子的阈值的原子核的结构。 这个能量区域的核模型的发展提供了一种分析和关联来自核子散射实验和实验的数据的手段，在这些实验中，核子被各种探针（如电子和介子）从核中敲出。 这些研究提供了高激发下原子核结构和核子在原子核内分布的信息。 第二个领域是超核物理学。 超核至少包含一个奇异度或粲度不为零的重子。 虽然它们的寿命很短，超核提供了一个实验室来确定奇异重子与核子以及它们之间的相互作用。 它们也提供了研究奇异重子特殊衰变模式的唯一实用手段。 这种衰变模式与自由奇异重子的衰变不同，它不产生介子。 提出了确定这些奇异重子的相互作用和非介子衰变机制的调查。