Investigation of Nuclear Structure with Intermediate-Energy Electrons and Photons

用中能电子和光子研究核结构

• 批准号: 9501848
• 负责人: Daniel Sober
• 金额: --
• 依托单位: Catholic University of America
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-05-01 至 1998-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9501848&HistoricalAwards=false
• 关键词: Investigation; Nuclear; Structure; Intermediate; Energy

9501848 Sober Research will be carried out in photo-production of mesons using the CLAS detector at the CEBAF electron accelerator, and in low energy electron scattering at the Darmstadt linear accelerator in Germany. The former data, to be obtained using circularly polarized photons and with polarized targets, will be used to test the Gerasimov-Drell-Hearn sum rule which relates to the spin structure of the nucleon. This is one of the high priority subjects within contemporary nuclear physics. In connection with this work, development of the CEBAF photon tagger will be carried out. Additional studies of strangeness photoproduction will be carried out in conjunction with other members of the CEBAF CLAS collaboration. The low energy electron scattering will be carried out at the newly-established, low- energy, 180 degree electron scattering facility. That work will focus on determining magnetic transition strength in light- and medium-weight nuclei. These data will be used to test nuclear structure calculations. Development, construction, and utilization of major state-of-the-art equipment is integral to this activity. Education of graduate students is a strong component in every aspect of this grant. ***

9501848将在CEBAF电子加速器上使用CLAS探测器进行光生介子研究，并在德国的达姆施塔特直线加速器上进行低能电子散射研究。前者的数据，将获得使用圆偏振光子和极化的目标，将被用来测试Gerasimov-Drell-Hearn求和规则，涉及到核子的自旋结构。这是当代核物理学中最重要的课题之一。在这项工作中，将开发CEBAF光子标记器。将与CEBAF CLAS合作的其他成员一起进行奇异光产生的其他研究。低能电子散射将在新建立的低能180度电子散射装置上进行。这项工作将侧重于确定轻、中质量核的磁跃迁强度。这些数据将用于测试核结构计算。开发、建设和利用主要的最先进的设备是这项活动的组成部分。研究生教育是该补助金各个方面的重要组成部分。***