Spectroscopy and Electromagnetic Moments of Nuclei under Extreme Conditions

本提案将研究原子核在稳定性、角动量和能量极端情况下的结构。这些研究将包括质子滴线以外的核系统，以及裂变的稳定极限。利用放射性离子束研究远不稳定核上的光离子转移反应的技术将得到发展。本提案还通过测量激发态的磁矩，解决了作为能量和自旋函数的核波函数的微观描述，剩余核子-核子相互作用的研究，以及单个粒子构型与潜在的球形或变形核心的相互作用。将传统的瞬态场方法与新开发的逆运动学中{\it束}的库仑激发方法相结合，探索一种新技术，以测量靠近壳闭合的原子核中寿命为亚皮秒的激发态磁矩。拟议活动的结构旨在对研究生和本科生以及参与这些实验研究活动的博士后的教育和培训产生重大影响。

This proposal will investigate the structure of atomic nuclei at the extremes of stability, angular momentum, and energy. The studies will include nuclear systems beyond the proton drip line and at thelimits of stability to fission. Techniques will be developed to study light-ion transfer reactions on nuclei far from stability using radioactive ion beams. This proposal also addresses, via measurements of magnetic moments of excited states, the the microscopic description of nuclear wavefunctions as a function of energy and spin, the study of residual nucleon-nucleon interactions, and the interplay of single particle configurations with an underlying spherical or deformed core. A new technique, combining the traditional transient field method with the newly developed approach involving Coulomb excitation of {\it beams} in inverse kinematics, will be explored in order to measure magnetic moments of excited states withsubpicosecond lifetimes in nuclei close to shell closure. The structure of the proposed activities is designed to have great impact on the education and training of graduate and undergraduate students, as well as postdoctoral associates involved with these experimental research activities.