RUI: Probing Subatomic Physics Via Lepton Interactions

詹姆斯·麦迪逊大学的粒子和核物理小组的目标是成为中能核物理最先进研究的关键贡献者，同时为本科生提供出色的教育体验。这三名教员和他们的学生专注于旨在探索核子(中子和质子)结构的研究，核子是任何原子核的基本构件。虽然人们理解核子是由三个相互作用(通过胶子交换)的夸克(被视为基本粒子)组成的，但关于产生和支配多夸克系统(质子、中子、原子核)演化的机制的图景还不完整。该小组参与了旨在通过使用电子、µ子和光子探测器绘制原子核和核子结构的图表来澄清这一图景的研究。小组成员深入参与了开展这一研究计划所需的硬件(探测器开发)、软件以及组织基础设施的建设工作。目前，该小组正在积极参与杰斐逊实验室A、B和C实验厅正在进行的研究(包括核子的电子散射、对偶研究、奇异性产生)和费米实验室(Muon旋磁常数，g-2)。此外，JMU-PNP小组成员是探测器和软件开发的关键参与者(C厅：闪烁器望远镜探测器，ROOT/C数据分析代码；B厅：正向标记器，预示屏热量计)，这是杰斐逊实验室12GeV能源升级的一部分，并是将利用这次升级的实验的主要研究人员。该小组的成功可以通过出版物的数量来衡量，这标志着我们对亚核物质的理解加深了。同样重要的是，也可以通过在我们团队中从事研究而获得宝贵经验的本科生数量来衡量成功与否。

The Particle and Nuclear Physics group at James Madison University aims to be a key contributor to state of the art research in Intermediate Energy Nuclear Physics while providing an outstanding educational experience for undergraduate students. The three faculty members and their students focus on research designed to explore the structure of nucleons (neutrons and protons) which are the basic building blocks of any atomic nucleus. While it is understood that nucleons are composed of three interacting (via gluon exchange) quarks (viewed as fundamental particles) the picture of the mechanisms that give rise and govern the evolution of multi-quark systems (protons, neutrons, nuclei) is not yet complete. The group participates in studies aimed at clarifying this picture by charting the structure of nuclei and nucleons using electron, muon, and photon probes. Group members are deeply involved in the efforts of building the hardware (detector development), software, as well as the organizational infrastructure needed to carry out this research program. Currently the group is actively involved in ongoing research at Jefferson Lab in experimental Halls A, B, and C (inclusive electron scattering off the nucleon, duality studies, strangeness production) and Fermilab (the muon gyromagnetic constant, g-2). Additionally, the JMU-PNP group members are key participants in detector and software development (Hall C: scintillator hodoscope detector, ROOT/C++ data analysis code; Hall B: forward tagger, preshower calorimeter) that is part of the 12 GeV energy upgrade at Jefferson Lab and are principal investigators on experiments that will take advantage of this upgrade. The group's success can be measured through the number of publications, signaling the deepening of our understanding of subnuclear matter. Equally as important success can be gauged also through the number of undergraduate students that gain invaluable experience by pursuing research in our group.