Theoretical Studies of Medium- and high-energy Electron Scattering off Light Nuclei

轻核中高能电子散射的理论研究

基本信息

批准号：
2111442
负责人：
Wim Cosyn
金额：
$ 24万
依托单位：
Florida International University
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：
2021-08-15 至 2024-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2111442&HistoricalAwards=false
关键词：
Theoretical Studies Medium energy Electron

项目摘要

Atomic nuclei make up close to 100% of visible matter around us. Even though it's known that nuclei are bound by the underlying fundamental theory of the strong nuclear interaction, it is not yet understood how exactly they (and the nucleons within them) emerge from it. This project will study and advance our knowledge of the strong interaction through the theoretical modeling of high-energy reactions with light nuclei. Light nuclei consist of only a few nucleons, resulting in reactions with a high degree of precision and control. In these systems, the strong interactions can be studied both between different nucleons and within a single nucleon, where it acts on the fundamental quark and gluon building blocks. The PI will mentor graduate students working on the research, develop a graduate course in nuclear physics, and engage in outreach activities involving high-school teachers.The goal of this project is to advance our theoretical understanding of non-perturbative aspects of the strong interaction through electron scattering off light nuclei. In high-energy reactions, an electron probes the nucleus as if sitting on a wave front moving at the speed of light. Hence the PI and his collaborators will use the framework of light-front quantum mechanics, which enables one to cleanly separate the low-energy nuclear structure of the light nucleus from the high-energy reaction dynamics. Light nuclei offer unique features to probe the strong interaction: they can be polarized, enabling spin-dependent studies; the initial nuclear state is well known and can be controlled in measurements. For this project, the PI will exploit these features in reactions on the deuteron and helium. These studies are of importance for current and future measurements at US-based accelerator facilities such as Jefferson Lab and the 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.

原子核占我们周围可见物质的100％。尽管众所周知，核受到强核相互作用的基本理论的束缚，但尚不理解它们（以及其中的核子）如何从中出现。该项目将通过对光核的高能反应的理论建模来研究和提高我们对强烈相互作用的了解。光核仅由几个核子组成，导致反应具有高度的精度和对照。在这些系统中，可以在不同的核子和单个核子之间研究强相互作用，在该核子上，它作用于基本的夸克和Gluon构建块。 PI将指导从事这项研究的研究生，开发核物理学的研究生课程，并从事涉及高中教师的外展活动。该项目的目的是通过从光核中脱离电子散射来提高我们对强烈交互的理论理解。在高能反应中，电子探测细胞核，好像坐在波前在光速下移动一样。因此，PI和他的合作者将使用光量量子力学的框架，这使人们能够将光核的低能核结构与高能量反应动力学分开。光核提供了独特的特征来探测强相互作用：它们可以极化，从而实现自旋依赖性研究；最初的核状态是众所周知的，可以在测量中控制。对于这个项目，PI将在Deuteron和氦气上的反应中利用这些特征。这些研究对于美国杰斐逊实验室和未来的电子撞机等美国加速器设施的当前和将来的测量至关重要。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的智力优点和更广泛的影响来通过评估来支持的。

项目成果

期刊论文数量（6）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Precision studies of QCD in the low energy domain of the EIC

DOI：
10.1016/j.ppnp.2023.104032
发表时间：
2022-11
期刊：
Progress in Particle and Nuclear Physics
影响因子：
9.6
作者：
V. Burkert;L. Elouadrhiri;A. Afanasev;J. Arrington;M. Contalbrigo;W. Cosyn;A. Deshpande;D. Glazier-D.-G
通讯作者：
V. Burkert;L. Elouadrhiri;A. Afanasev;J. Arrington;M. Contalbrigo;W. Cosyn;A. Deshpande;D. Glazier-D.-G

Spatial densities of the photon on the light front

DOI：
10.1103/physrevd.106.114014
发表时间：
2022-07
期刊：
Physical Review D
影响因子：
5
作者：
A. Freese;W. Cosyn
通讯作者：
A. Freese;W. Cosyn

Nuclear C(e, e′p) Transparencies in a Relativistic Glauber Model

相对论格劳伯模型中的核 C(e, e−p) 透明度

DOI：
10.3390/physics4020045
发表时间：
2022
期刊：
Physics
影响因子：
1.6
作者：
Cosyn, Wim;Ryckebusch, Jan
通讯作者：
Ryckebusch, Jan

u-Channel Color Transparency Observables

u 通道颜色透明度可观测值

DOI：
10.3390/physics4020030
发表时间：
2022
期刊：
Physics
影响因子：
1.6
作者：
Huber, Garth M.;Li, Wenliang B.;Cosyn, Wim;Pire, Bernard
通讯作者：
Pire, Bernard

Searching for an Enhanced Signal of the Onset of Color Transparency in Baryons with D(e,e′p)n Scattering

利用 D(e,e−p)n 散射寻找重子中颜色透明度开始的增强信号

DOI：
10.3390/physics4040092
发表时间：
2022
期刊：
Physics
影响因子：
1.6
作者：
Li, Shujie;Yero, Carlos;West, Jennifer Rittenhouse;Bennett, Clare;Cosyn, Wim;Higinbotham, Douglas;Sargsian, Misak;Szumila-Vance, Holly
通讯作者：
Szumila-Vance, Holly