US-South Africa Cooperative Research: Nuclear Physics

美国-南非合作研究：核物理

• 批准号: 0079949
• 负责人: C. Steven Whisnant
• 金额: $ 1.4万
• 依托单位: University of South Carolina at Columbia
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-10-01 至 2001-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0079949&HistoricalAwards=false
• 关键词: US; South; Africa; Cooperative; Research

0079949WhisnantThis award supports a new research collaboration between C. Steven Whisnant, Department of Physics and Astronomy, University of South Carolina, and Simon Connell, Schonland Research Center for Nuclear Sciences (SRC) at the University of the Witwatersrand (WITS), Johannesburg, South Africa. During the course of the three-year award, the researchers will collaborate on theoretical and experimental nuclear physics research on nucleon and meson interactions using photon beams. With separate funding, a recent graduate of WITS will work as a postdoc on the project.Professor Whisnant's experimental photonuclear physics program is conducted at the Laser Electron Gamma Source (LEGS) at Brookhaven National Laboratory, and with the Large Acceptance Spectrometer (CLAS) at the Continuous Electron Beam Accelerator Facility at the Thomas Jefferson National Accelerator Facility (Jlab). As part of the NA59 collaboration at the European Laboratory for Particle Physics (CERN), the researchers at WITS are pursuing a complementary program studying the internal structure of the nucleon through meson photoproduction at very high photon energies. The NA59 collaboration has developed techniques for producing and analyzing the degree of polarization of circularly polarized photon beams that can provide valuable direct information on the beam polarization at LEGS and Jlab. Conversely, the polarized target technology developed for LEGS can significantly enhance the CERN program. The theoretical input provided by the researchers in South Africa spans both energy regions and will be a valuable aid in data analysis and the design of new experiments.

0079949 Whisnant该奖项支持C.南卡罗来纳州大学物理和天文学系的Steven Whisnant和南非约翰内斯堡威特沃特斯兰德大学（WITS）Schonland核科学研究中心（SRC）的Simon Connell。 在为期三年的奖项期间，研究人员将利用光子束在核子和介子相互作用的理论和实验核物理研究方面进行合作。 随着单独的资金，WITS的应届毕业生将作为博士后工作的项目。教授Whisnant的实验光核物理程序是在布鲁克海文国家实验室的激光电子伽马源（LEGS）进行，并与大接受光谱仪（CLAS）在连续电子束加速器设施在托马斯杰斐逊国家加速器设施（Jlab）。 作为欧洲粒子物理实验室（CERN）NA59合作的一部分，WITS的研究人员正在进行一项补充计划，通过在非常高的光子能量下的介子光生来研究核子的内部结构。 NA59合作开发了用于产生和分析圆偏振光子束的偏振度的技术，这些技术可以在LEGS和Jlab提供有关光束偏振的有价值的直接信息。 相反，为LEGS开发的极化目标技术可以显着增强CERN计划。 南非研究人员提供的理论输入跨越两个能源区域，将有助于数据分析和新实验的设计。