Studies of Nuclear Structure and Nuclear Processes at Intermediate Energies

印第安纳大学回旋加速器设施(IUCF)将进行中间能量、强子核物理的研究。IUCF是一个全国性的用户机构，印第安纳大学的教职员工、博士后和学生，以及来自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的研究人员正在进行研究。就加速器束流时间的使用和开展研究所需的其他专门资源向国际自然保护联盟提出了建议。所有这些提案都由一个国家项目咨询委员会审查，该委员会反过来提出建议，以奖励传输时间或拒绝提案。IUCF运营人员在6至7个月的运行周期中每年提供约4000小时的加速器束流时间。该研究计划将以使用能量高达5亿电子伏特的质子和其他轻离子束为中心，有几个广泛的主题：研究核子-核子力的介子-核子基础；研究少数核子系统，特别是寻找多体力的表现形式；研究核介质中核子-核子力的修改，作为基于强相互作用的潜在夸克-胶子的表现；以及基本对称性的测试。产生的数据将挑战当前关于核子-核子力、它在原子核中的修改以及它所遵循的基本对称性的理论。此外，IUCF还为研究加速器物理，特别是循环加速器中的非线性粒子束动力学和去偏振现象的强大用户群体提供服务。这些数据将扩展我们对粒子加速器以及可持续束流强度和束极化极限的了解。最后，IUCF在材料和生物辐射效应方面为应用研究人员提供了光束。对学生和博士后的教育是国际自然保护联盟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.