Nuclear Physics Experiments with the Electro-weak Probe

由俄亥俄大学小组计划的中等能量核实验计划旨在回答以下问题：“亚原子物质如何在质子或中子内部组织”和“与质子或中子结构有关的基本相互作用是否完全被理解”。这两个问题都是核物理学的核心问题，在美国国家研究委员会2013年核物理学评估与展望报告中进行了讨论。具体来说，PI的研究重点是研究质子和中子的内部结构。这个结构是由强大的力量控制的，这是大自然的四种基本力量之一。pi将通过寻找粒子物理标准模型之外的物理来研究我们对这四种力的理解的极限。他们将在托马斯·杰斐逊国家加速器设施（JLab）使用电子束与中子目标碰撞。该研究将由两名研究生、两名本科生和pi进行。该项目的广泛影响是多方面的，包括培训下一代科学家，提高少数族裔科学家的形象（特别是在STEM领域指导女性），并通过对高中生的STEM教育吸引公众。Roche是两个JLab实验的联合发言人，致力于研究广义Parton分布框架下质子的内部结构。该小组将在A大厅完成深度虚拟康普顿散射（DVCS）实验的分析，并准备在c大厅进行第二代DVCS实验的数据采集。金是违反宇称实验的数据采集和软件工作的领导者，该实验旨在寻找超越标准模型的物理。King将继续协调QWEAK合作的分析工作，并发表多篇论文。在他的领导下，该小组的成员将为PREXII/CREX实验采集和分析数据，该实验将于2019年夏天开始数据。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

The medium-energy nuclear experimental program planned by the Ohio University group aims to answer the questions: "How does subatomic matter organize itself inside a proton or neutron" and "Are the fundamental interactions relating to the structure of proton or neutron fully understood". Both questions are central to nuclear physics and are discussed in the 2013 report of the National Research Council on the Assessment of and Outlook for Nuclear Physics. Specifically, the PI's research focuses on the study of the internal structure of protons and neutrons. This structure is governed by the strong force, which is one of the four fundamental forces of Nature. The PIs will study the limits of our understanding of these four forces by looking for physics beyond the Standard Model of particle physics. They will work with an electron beam colliding with a neutron target at the Thomas Jefferson National Accelerator Facility (JLab). The research will be performed by two graduate students, two undergraduate students, and the PIs. The broader impacts of the program are multifold, including training the next generation of scientists, raising the profile of minority scientists (especially mentoring women in STEM) and engaging the public through STEM education for High School students. Roche is a co-spokesperson of two JLab experiments dedicated to the study of the internal structure of the proton within the Generalized Parton Distributions framework. The group will finish the analysis of the Deeply Virtual Compton Scattering (DVCS) experiment in Hall A and prepare for data-taking of a second generation of DVCS experiments in Hall C. King is a leader of the data acquisition and software work for Parity Violating experiments searching for physics beyond the Standard Model. King will continue to coordinate the analysis efforts of the QWEAK collaboration leading to the publication of several papers. Under his leadership, members of the group will take and analyze data for the PREXII/CREX experiments that will start data in the summer of 2019.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.