Experimental Nuclear Physics Research

Nadasen首席研究员和三到四名本科生将执行密歇根大学迪尔伯恩分校的实验核物理研究计划。该计划的主要内容之一将是利用三种不同的技术对NSCL产生的放射性核束进行调查。首先，将在侧面角度范围内测量光束与稳定核的弹性散射的微分截面。对数据的光学模型和折叠模型分析将提供这些不稳定核的结构和相互作用性质的信息。其次，最外层的核子将被质子击倒，并将测量质子和抛射体的角分布和能量分布。通过对数据的DWIA分析，将获得动量分布、结合能、角动量和核-核子关联。第三，对反应截面的测量将确定晕的特征以及核和电磁离解的细节。总的目标是得出放射性核特有的反常特征。另一项主要工作将是研究重离子反应，以更深入地了解反应机理，并得出有助于确定核状态方程的参数。特别是，非紧凑几何结构(内部密度低)和径向流动的排放将被检查。

9971836NadasenThe principal investigator and three to four undergraduate students will carry out the experimental nuclear physics research program of the University of Michigan, Dearborn. One major thrust of the program will be the investigation of radioactive nuclear beams produced at the NSCL by employing three different techniques. First, differential cross sections for the elastic scattering of the beams from stable nuclei will be measured over side angular ranges. The optical model and folding model analyses of the data will provide information of the structure and interaction properties of these unstable nuclei. Second, the outermost nucleon will be knocked out by a proton, and the angular and energy distributions of both the proton and ejectile will be measured. From the DWIA analyses of the data, momentum distributions, binding energies, angular momenta and core-nucleon correlations will be obtained. Third, measurement of reaction cross sections will identify halo characteristics and details of nuclear and electromagnetic dissociations. The overall goal is to derive anomalous characteristics peculiar to radioactive nuclei. Another major thrust will be the study of heavy ion reactions to obtain more insight into the reaction mechanism and to derive parameters that will contribute towards the determination of the nuclear equation of state. In particular emissions from non-compact geometry (with low-density interior) and radial flow will be examined.