Studies of Nuclear Structure and Nuclear Processes at Intermediate Energies

在中间能量，强子核物理的研究将在印第安纳大学回旋加速器设施（IUCF）进行。IUCF是一个国家用户设施，由印第安纳大学的教职员工、博士后和学生以及美国和国外的其他大学、美国国家实验室、其他联邦机构和工业界进行研究。有人建议IUCF使用加速器束时间和其他进行研究所需的专门资源。所有这些提案都由国家项目咨询委员会审查，该委员会反过来提出建议，给予波束时间或拒绝提案。在6至7个月的运行周期内，IUCF的操作人员每年提供约4000小时的加速器束时间。该研究计划将围绕能量高达5亿电子伏特的质子和其他光离子束的使用，并有几个广泛的主题：核子-核子力的介子-核子基础的研究；对少核子系统的研究，特别是寻找多体力的表现；核介质中核子-核子力的变化作为强相互作用的潜在夸克-胶子基础的潜在表现的研究以及基本对称性的测试。所产生的数据将挑战当前的核子-核子力理论，它在原子核中的修正，以及它所遵循的基本对称性。此外，IUCF还服务于研究加速器物理的强大用户社区，特别是非线性粒子束动力学和循环加速器中的去极化现象。这些数据将扩展我们对粒子加速器和可持续光束强度和光束偏振极限的认识。最后，IUCF为材料和生物辐射效应的应用研究提供光束。培养学生和博士后是IUCF使命的重要组成部分。

Research in intermediate energy, hadronic nuclear physics will be carried out at the Indiana University Cyclotron Facility (IUCF). IUCF is a national user facility, with research being carried out by faculty, staff, postdocs, and students from Indiana University, as well as from other universities in the US and abroad, from US national laboratories, from other federal agencies, and from industry. Proposals are made to IUCF for use of accelerator beam time and for other specialized resources needed to carry out the research. All such proposals are reviewed by a national program advisory committee, which in turn makes recommendations to award beam time or to decline a proposal. The IUCF operations staff provides about 4000 hours of accelerator beam time per year during a 6 to 7 month running cycle. The research program will center around the use of proton and other light ion beams with energies up to 500 million electron volts, and has several broad themes: the study of the meson-nucleon basis for the nucleon-nucleon force; the study of few-nucleon systems, in particular searching for manifestations of many-body forces; the study of modifications of the nucleon-nucleon force in the nuclear medium as a potential manifestation of the underlying quark- gluon basis of the strong interaction; and tests of fundamental symmetries. The data produced will challenge current theories of the nucleon-nucleon force, its modification in nuclei, and the fundamental symmetries which it obeys. In addition, IUCF serves a strong user community studying accelerator physics, specifically non-linear particle beam dynamics and de-polarization phenomena in cyclic accelerators. These data will extend our knowledge of particle accelerators and the limits of sustainable beam intensities and beam polarizations. Lastly, IUCF provides beam to applied researchers in materials and biological radiation effects. Education of students and postdocs is a strong component of the IUCF mission.