Nuclear Physics Experiments with the Electro-weak Probe

弱电探针的核物理实验

• 批准号: 1913170
• 负责人: Julie Roche
• 金额: $ 51万
• 依托单位: Ohio University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-09-01 至 2022-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1913170&HistoricalAwards=false
• 关键词: Nuclear; Physics; Experiments; Electro; weak

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.

俄亥俄大学小组计划的中能核实验计划旨在回答以下问题：“亚原子物质是如何在质子或中子内部组织起来的”，以及“与质子或中子结构有关的基本相互作用是否得到充分理解”。这两个问题都是核物理的核心问题，并在国家核物理评估和展望研究委员会2013年的报告中进行了讨论。具体地说，国际和平研究所的研究重点是质子和中子的内部结构。这一结构是由强大的力量所支配的，这是自然的四大基本力量之一。PI将通过寻找超越粒子物理标准模型的物理来研究我们对这四种力的理解的限度。他们将在托马斯·杰斐逊国家加速器设施(JLab)利用电子束与中子靶相撞进行工作。这项研究将由两名研究生、两名本科生和PI进行。该计划的更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)，以及通过针对高中生的STEM教育吸引公众。罗氏是两个JLab实验的联合发言人，这两个实验致力于在广义部分子分布框架内研究质子的内部结构。该小组将在A厅完成深度虚拟康普顿散射(DVCS)实验的分析，并准备在C厅进行第二代DVCS实验的数据采集。King是宇称破坏实验的数据采集和软件工作的负责人，该实验搜索标准模型以外的物理。金将继续协调QWEAK合作的分析工作，从而发表几篇论文。在他的领导下，该小组的成员将为将于2019年夏季开始的PREXII/CREX实验获取和分析数据。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。

项目成果

Precision Measurement of the Beam-Normal Single-Spin Asymmetry in Forward-Angle Elastic Electron-Proton Scattering

前角弹性电子质子散射中束流法线单自旋不对称性的精密测量

• DOI: 10.1103/physrevlett.125.112502
• 发表时间: 2020
• 期刊: Physical review letters
• 影响因子: 8.6
• 作者: Androic, D.;Armstrong, D.S.;Asaturyan, A;Bartlett, K.;Beaufait, J.;Beminiwattha, R.S.;Benesch, J.;Benmokhtar, F.;Birchall, J.;Carlini, R.D.
• 通讯作者: Carlini, R.D.

Exclusive π+ electroproduction off the proton from low to high −t

独家 Ï 质子电生产从低到高 Ït

• DOI: 10.1103/physrevc.100.065204
• 发表时间: 2019
• 期刊: Physical Review C
• 影响因子: 3.1
• 作者: Basnet, S.;Huber, G. M.;Li, W. B.;Blok, H. P.;Gaskell, D.;Horn, T.;Aniol, K.;Arrington, J.;Beise, E. J.;Boeglin, W.
• 通讯作者: Boeglin, W.

Parity-violating inelastic electron-proton scattering at low Q2 above the resonance region

谐振区上方低 Q2 处的宇称破坏非弹性电子-质子散射

• DOI: 10.1103/physrevc.101.055503
• 发表时间: 2020
• 期刊: Physical Review C
• 影响因子: 3.1
• 作者: Androić, D.;Armstrong, D. S.;Asaturyan, A.;Bartlett, K.;Beminiwattha, R. S.;Benesch, J.;Benmokhtar, F.;Birchall, J.;Carlini, R. D.;Cornejo, J. C.
• 通讯作者: Cornejo, J. C.

Deeply virtual Compton scattering using a positron beam in Hall-C at Jefferson Lab

• DOI: 10.1140/epja/s10050-021-00581-x
• 发表时间: 2021-05
• 期刊: The European Physical Journal A
• 作者: A. Afanasev;I. Albayrak;S. Ali;M. Amaryan;J. Annand;A. Asaturyan;V. Bellini;V. Berdnikov;M. Boer;K. Brinkmann;W. Briscoe;A. Camsonne;M. Caudron;L. Causse;M. Carmignotto;D. Day;M. Defurne;S. Diehln;R. Ent;P. Chatagnon;R. Dupr'e;D. Dutta;M. Ehrhart;M. A. I. Fernando;T. Forest;M. Guidal;J. Grames;P. Guèye;S. Habet;David Hamilton;A. Hobart;T. Horn;C. Hyde;G. Kalicy;D. Keller;C. Keppel;M. Kerver;E. Kinney;H. Ko;D. Marchand;P. Markowitze;Malek Mazouz;M. McCaughan;B. Mckinnon;A. Mkrtchyan;H. Mkrtchyan;M. Muhoza;C. Camacho;J. Murphy;P. Nadel-Turonski;S. Niccolai;G. Niculescu;R. Novotný;R. Paremuzyan;I. Pegg;K. Price;H. Rashad;J. Roche;R. Rondón;B. Sawatzky;V. Sergeyeva;S. vSirca;A. Somov;I. Strakovsky;V. Tadevosyan;R. Trotta;H. Voskanyan;E. Voutier;B. Wojtsekhowski;S. Wood;S. Zhamkochyan;J. Zhang;S. Zhao;C. Zorn

Deeply virtual Compton scattering off the neutron

• DOI: 10.1038/s41567-019-0774-3
• 发表时间: 2020-01
• 期刊: Nature Physics
• 影响因子: 19.6
• 作者: M. Benali;C. Desnault;Malek Mazouz;Z. Ahmed;H. Albataineh;K. Allada;K. Aniol;V. Bellini;W. Boeglin