Studies of Nuclear Reactions and Structure

我们建议开展广泛的核物理研究计划，密切关注美国能源部-NSF核科学咨询委员会确定的国家优先事项。 大部分研究将在佛罗里达州立大学超导加速器实验室的新RESOLUT稀有同位素设施中进行。 这将是针对天体物理学研究有关的快速质子捕获过程中的核合成，实验研究的结构非常轻的原子核进行比较，与前沿从头计算理论计算，并探索基本壳结构（“幻数”）在原子核的变化与大质子或中子过剩。 密切相关的补充实验也将在国家超导加速器实验室进行。 独特的FSU极化锂束也将用于表征天体物理学感兴趣的反应。 在ATLAS设施中，将用γ射线探测器探索高度变形、快速旋转的原子核中的一种新型运动。 FSU小组在相对论重离子对撞机上建造了PHENIX探测器的主要部分，现在提议研究J/PSI粒子的产生，以测试实验能够在多大程度上重现大爆炸早期存在的夸克胶子等离子体。 FSU小组的其他成员提出寻找新的基本粒子，其独特的量子数将清楚地证明它们涉及胶子的激发。 这种粒子是由目前最好的夸克和胶子模型预测的，但以前还没有被确定地看到。 该实验将在杰斐逊实验室进行，该实验室已经以很高的评价批准了该实验。

We propose to carry out a broad program in nuclear physics research following closely the national priorities determined by the DOE-NSF Nuclear Science Advisory Committee. Much of the research will be carried out with the new RESOLUT rare isotope facility at the Florida State University Superconducting Accelerator Laboratory. This will be directed toward astrophysical studies related to the rapid proton capture process in nucleosynthesis, experimental investigation of the structure of very light nuclei for comparison with forefront ab-initio theoretical calculations, and exploration of how the fundamental shell structure ("magic numbers") in atomic nuclei changes with large proton or neutron excess. Closely related, complementary experiments will also be carried out at the National Superconducting Accelerator Laboratory. The unique FSU polarized lithium beam will also be used to characterize reactions of astrophysical interest. A new type of motion in highly deformed, rapidly rotating nuclei will be explored with Gammasphere at the ATLAS facility. The FSU group constructed a major part of the PHENIX detector at the Relativistic Heavy Ion Collider and now proposes to study the production of J/PSI particles to test how closely the experiments are able to reproduce the quark-gluon plasma that existed in the earliest times of the Big Bang. Other members of the FSU group propose to search for new elementary particles whose unique quantum numbers will clearly prove that they involve excitations of the gluons. Such particles are predicted by the best current models of quarks and gluons, but have not been conclusively seen before. The experiment will be performed at Jefferson Laboratory, which has already approved it with a high rating.