Studies of Nuclear Structure and Nuclear Processes at Intermediate Energies

中能强子核物理研究将在印第安纳州大学回旋加速器设施（IUCF）进行。 IUCF是一个全国性的用户设施，由来自印第安纳州大学以及美国和国外其他大学、美国国家实验室、其他联邦机构和工业界的教师、工作人员、博士后和学生进行研究。 建议IUCF使用加速器束时间和其他专业资源需要进行研究。 所有这些建议都由一个国家计划咨询委员会审查，该委员会反过来提出建议，以授予光束时间或拒绝一项建议。 IUCF操作人员在6至7个月的运行周期内每年提供约4000小时的加速器束流时间。 该研究计划将围绕能量高达5亿电子伏的质子和其他轻离子束的使用，并有几个广泛的主题：研究核子-核子力的介子-核子基础;研究少核子系统，特别是寻找多体力的表现;研究核子-核子力在核介质中的变化，作为强相互作用的夸克-胶子基础的潜在表现;以及基本对称性的检验。 所产生的数据将挑战当前的核子-核子力理论，它在原子核中的变化，以及它所遵循的基本对称性。 此外，IUCF还为研究加速器物理的强大用户社区提供服务，特别是循环加速器中的非线性粒子束动力学和去极化现象。 这些数据将扩展我们对粒子加速器的了解，以及可持续的光束强度和光束偏振的限制。 最后，IUCF为材料和生物辐射效应的应用研究人员提供光束。 学生和博士后的教育是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.