RUI: Norfolk State University's Meson Spectroscopy Studies with GlueX and CLAS12 at Jefferson Lab

RUI：诺福克州立大学杰斐逊实验室使用 GlueX 和 CLAS12 进行的介子光谱研究

• 批准号: 1820345
• 负责人: Carlos Salgado
• 金额: $ 15.04万
• 依托单位: Norfolk State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-09-01 至 2022-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1820345&HistoricalAwards=false
• 关键词: RUI; Norfolk; State; University; Meson

Norfolk State University (NSU) participates in the study of the sub-atomic structure of matter as members of the GlueX and MesonEx (CLAS12) experiments at the Thomas Jefferson National Accelerator Facility (Jefferson Lab) located in Newport News, Virginia. The group researches the forces that keep the basic components of sub-atomic particles together, known as the "strong" force. They expect to identify a new form of sub-atomic particles (exotics) that can greatly contribute to the understanding of the strong force. These exotics will provide an external manifestation of the strong force that otherwise is hidden (confined inside the particles). NSU faculty and undergraduate students are developing a software infrastructure to perform the analysis of big data in a user-friendly manner. Specifically, they are exploring new statistical techniques, hardware options and software programing to help the analysis. The NSU campus is near Jefferson Lab, providing NSU students opportunities to participate in research all year around. It is a goal of this project to strengthen the national participation of undergraduate minorities in nuclear and particle physics research. Historically Black Colleges and Universities (HBCU), such as NSU, have been more successful than majority institutions in retaining minority students at the undergraduate level and introducing them to graduate programs in STEM disciplines. Norfolk State University is participating in the experimental study of the strong interactions by testing basic Quantum Chromodynamics (QCD) using Meson Spectroscopy. This project proposes to continue the group's participation in the GlueX (Hall D) and MesonEx (Hall B) experiments at Jefferson Lab. Meson spectroscopy is of fundamental importance for the understanding of the strong interaction at intermediate energies with the goal of finding more details about QCD confinement. NSU had been involved in hardware construction and software development for both experiments and in the data analysis of previous CLAS experiments related to meson photo-production. The group proposes to continue its current involvement in the analyses and software development of meson photo-production performing full Partial Wave Analysis (PWA) of few body final states. The spectroscopy studies concentrate in channels for the study of exotics and strangeonia states. They are working to obtain more efficient, user friendly and fast analysis code for pursuing amplitude analysis. GlueX and MesonEx will obtain data with such better systematic and statistical uncertainties that the limitations of the current methods of analysis will be exposed. Therefore new refinements in analysis will be required, and a close collaboration between theorists (models) and experimentalists (software), to obtain definite results. Through this program, NSU faculty and undergraduate students will directly participate in the software development and analysis of data from experiments in the forefront of nuclear physics research. NSU is one of the leading HBCU's in the country and its main campus is conveniently located at a short distance from Jefferson Lab. The group has a continuous record of involving minorities at Jefferson Lab for the last 20 years. This project will continue to provide opportunities to under-represented minorities and strengthen diversity in nuclear physics research.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.

诺福克州立大学(NSU)作为GlueX和MesonEx(CLAS12)实验的成员参与了位于弗吉尼亚州纽波特纽斯的托马斯·杰斐逊国家加速器设施(杰斐逊实验室)的物质亚原子结构研究。该小组研究的是将亚原子粒子的基本成分保持在一起的力，即所谓的“强”力。他们希望发现一种新形式的亚原子粒子(奇异粒子)，这种粒子可以极大地有助于理解这种强大的作用力。这些外来物质将提供一种外部显示的强大力量，否则是隐藏的(限制在粒子内部)。北卡罗来纳州立大学的教职员工和本科生正在开发一种软件基础设施，以便以用户友好的方式执行大数据分析。具体地说，他们正在探索新的统计技术、硬件选择和软件编程来帮助分析。南洋理工大学的校区靠近杰斐逊实验室，为南洋理工大学的学生提供了全年参与研究的机会。该项目的一个目标是加强全国少数民族大学生对核物理和粒子物理研究的参与。历史上，黑人学院和大学(HBCU)，如NSU，在留住少数族裔学生在本科生水平并将他们引入STEM学科的研究生课程方面，一直比大多数机构更成功。诺福克州立大学正在参与强相互作用的实验研究，方法是使用介子光谱测试基本量子色动力学(QCD)。该项目建议该小组继续参与杰斐逊实验室的GlueX(D厅)和MesonEx(B厅)实验。介子能谱对于理解中能级强相互作用具有重要意义，目的是找到更多关于QCD禁闭的细节。NSU参与了这两个实验的硬件建设和软件开发，并参与了以前与介子光产生有关的CLAS实验的数据分析。该小组建议继续其目前参与的介子光产生的分析和软件开发，执行少数几个主体终态的完整部分波分析(PWA)。光谱学研究集中在研究奇异和奇异状态的通道中。他们正在努力获得更高效、用户友好和快速的分析代码，以进行幅度分析。GlueX和MesonEx将获得具有更好的系统和统计不确定性的数据，从而暴露出当前分析方法的局限性。因此，将需要在分析中进行新的改进，并在理论家(模型)和实验者(软件)之间进行密切合作，以获得明确的结果。通过这个项目，北大的教职员工和本科生将直接参与核物理研究前沿实验数据的软件开发和分析。北卡罗来纳州立大学是国内领先的HBCU之一，其主校区距离杰斐逊实验室很近。在过去的20年里，该组织一直有让杰斐逊实验室的少数族裔参与的记录。该项目将继续为代表性不足的少数群体提供机会，并加强核物理研究的多样性。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。