Research in Low Energy Nuclear Physics

低能核物理研究

• 批准号: 9870280
• 负责人: Gene Sprouse
• 金额: $ 350.52万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-08-01 至 2002-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9870280&HistoricalAwards=false
• 关键词: Research; Low; Energy; Nuclear; Physics

Research in Low Energy Nuclear Physics A broadly based program is proposed to study properties of nuclei and atoms using the Stony Brook superconducting linac as well as state of the art facilities available elsewhere such as Gammasphere. The program emphasizes frontier issues in nuclear structure physics (smooth band termination, physics near the proton drip line near A=3D100, M1 excitations, superdeformed and other large deformation shapes in the A=3D80 region, and the competition between particle and gamma-ray emission at the limits of stability). Another venue of research utilizes the decay of giant resonances to study properties of nuclear matter (nuclear dissipation, superconducting-to-liquid drop phase transition, nu-clear compressibility as a function of temperature). Another component of the program proposes to continue preparations for a test of the electroweak interaction (parity non-conservation in Fr atoms). A more suitable Francium laboratory will be prepared in order to perform atomic physics measurements with great accuracy (Stark-induced 7s -- 8s transition and hyperfine anomaly measurements). The Stony Brook Nuclear Structure Laboratory also serves as a focus of many educational activities. Students at the high school, undergraduate, graduate, and postdoctoral levels participate in the research program with various intensities, from beam line construction to running actual experiments.

低能核物理研究提出了一项基础广泛的计划，利用石溪超导直线加速器以及其他地方可用的最先进设施（例如 Gammasphere）来研究原子核和原子的性质。 该项目强调核结构物理的前沿问题（光滑能带终止、A=3D100附近质子滴线附近的物理、M1激发、A=3D80区域的超变形和其他大变形形状，以及稳定极限下粒子和伽马射线发射之间的竞争）。 另一个研究领域利用巨共振的衰变来研究核物质的特性（核耗散、超导到液滴相变、核可压缩性与温度的关系）。该计划的另一个组成部分建议继续准备电弱相互作用（Fr 原子中的宇称不守恒）测试。 将准备一个更合适的钫实验室，以便进行高精度的原子物理测量（斯塔克诱导的7s-8s跃迁和超精细异常测量）。 石溪核结构实验室也是许多教育活动的焦点。高中、本科生、研究生和博士后级别的学生参与了从光束线建设到实际实验等不同强度的研究项目。