3D Partonic Structure of Hadrons

强子的 3D 部分子结构

• 批准号: 2111490
• 负责人: Peter Schweitzer
• 金额: $ 30万
• 依托单位: University of Connecticut
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2111490&HistoricalAwards=false
• 关键词: 3D; Partonic; Structure; Hadrons

This project will contribute to study of the internal structure of hadrons, fundamental building blocks of matter that include protons, neutrons, and other subatomic particles. Important insights in the internal structure of hadrons are gained from experimental studies of high-energy processes carried out at leading experimental facilities in the USA, such as the Thomas Jefferson National Accelerator Facility and the Brookhaven National Laboratory, and other facilities world-wide. The PI and his collaborators will be developing theoretical and phenomenological tools to provide theoretical support to those experimental science programs and help extract the 3-dimensional structure of protons, neutrons, and atomic nuclei in terms of quarks and gluons, their constituents. This project will provide excellent training opportunities for a new generation of nuclear physicists, postdoctoral fellows, graduate students, and undergraduate students. This project will also support outreach activities, such as public lectures to engage with the general public, share the excitement of nuclear physics, and disseminate the latest results in nuclear and particle physics. Depending on the specific reaction being studied, the internal structure of hadrons is characterized in complementary ways in terms of various functions including: parton distribution functions, generalized parton distributions, transverse momentum dependent distributions, and generalized transverse momentum dependent distributions. In this project the PI, together with his postdoc and students, will study this set of complementary functions with the objective of exploring so far unknown hadronic properties including spin-orbit correlations of partons, the 3-dimensional imaging or the mapping of strong forces exerted on partons inside a hadron. This research will provide new insights on the theoretical and phenomenological properties of these functions and advance the current knowledge of the hadronic structure. This research will provide support to experiments conducted or in preparation at the Brookhaven National Laboratory, Thomas Jefferson National Accelerator Facility, and the planned future Electron-Ion Collider.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.

这个项目将有助于研究强子的内部结构，强子是物质的基本组成部分，包括质子，中子和其他亚原子粒子。强子内部结构的重要见解是从高能过程的实验研究中获得的，这些实验研究是在美国领先的实验设施中进行的，如托马斯杰斐逊国家加速器设施和布鲁克海文国家实验室，以及世界各地的其他设施。PI和他的合作者将开发理论和现象学工具，为这些实验科学计划提供理论支持，并帮助提取质子，中子和原子核的夸克和胶子的三维结构，它们的成分。该项目将为新一代核物理学家、博士后研究员、研究生和本科生提供极好的培训机会。该项目还将支持外展活动，如与公众接触的公开讲座，分享核物理的兴奋，并传播核物理和粒子物理的最新成果。根据所研究的具体反应，强子的内部结构以各种函数的互补方式表征，包括：部分子分布函数、广义部分子分布、横向动量相关分布和广义横向动量相关分布。在这个项目中，PI与他的博士后和学生一起，将研究这组互补函数，目的是探索迄今为止未知的强子性质，包括部分子的自旋轨道相关性，三维成像或强子内部部分子上施加的强力映射。这一研究将对这些函数的理论和唯象性质提供新的见解，并推进当前对强子结构的认识。这项研究将为布鲁克海文国家实验室、托马斯杰斐逊国家加速器设施和计划中的未来电子离子对撞机进行或准备中的实验提供支持。该奖项反映了NSF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。

项目成果

2D energy-momentum tensor distributions of nucleon in a large- Nc quark model from ultrarelativistic to nonrelativistic limit

• DOI: 10.1103/physrevd.106.014012
• 发表时间: 2022-02
• 期刊: Physical Review D
• 影响因子: 5
• 作者: C'edric Lorc'e;P. Schweitzer;K. Tezgin

Parton model description of quark and antiquark correlators and TMDs

• DOI: 10.1016/j.nuclphysb.2022.115947
• 发表时间: 2022-06
• 期刊: Nuclear Physics B
• 影响因子: 2.8
• 作者: F. Aslan;S. Bastami;P. Schweitzer

Quark-model relations among TMDs in the parton model

帕顿模型中 TMD 之间的夸克模型关系

• DOI: 10.1103/physrevd.106.096010
• 发表时间: 2022
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Aslan, F.;Bastami, S.;Mahabir, A.;Tandogan, A.;Schweitzer, P.
• 通讯作者: Schweitzer, P.

Basics of factorization in a scalar Yukawa field theory

标量汤川场论中因式分解的基础知识

• DOI: 10.1103/physrevd.107.074031
• 发表时间: 2023
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Aslan, F.;Gamberg, L.;Gonzalez-Hernandez, J. O.;Rainaldi, T.;Rogers, T. C.
• 通讯作者: Rogers, T. C.

Visualization of internal forces inside the proton in a classical relativistic model

经典相对论模型中质子内力的可视化

• DOI: 10.31349/suplrevmexfis.3.0308090
• 发表时间: 2022
• 期刊: Suplemento de la Revista Mexicana de Física
• 作者: Varma, Mira;Schweitzer, Peter
• 通讯作者: Schweitzer, Peter