Parton Distributions in the Nucleon

核子中的帕顿分布

基本信息

批准号：
2012413
负责人：
Fatiha Benmokhtar
金额：
$ 21万
依托单位：
Duquesne University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2020
资助国家：
美国
起止时间：
2020-08-01 至 2023-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2012413&HistoricalAwards=false
关键词：
Parton Distributions Nucleon

项目摘要

It is well known that protons and neutrons are made from constituents, called quarks and gluons, which make up the substructure of protons and neutrons. The goal of this project is to make measurements of the position and momentum distributions of the quarks and build a three-dimensional map of quarks in the nuclear medium. This knowledge provides the basis of our understanding of nuclear matter in terms of the dynamics of their internal constituents. Using this information, theoretical models show how the constituent parts of the proton and neutron can be used to build up their fundamental intrinsic properties, such as their overall size and quantum mechanical spin. This award will support two undergraduate students each year as they learn both hardware and software skills that will prepare them for careers in the STEM workforce. This project engages the PI and Duquesne University's undergraduate students in research aimed at the study of parton distributions using semi-inclusive production of pions and kaons with CLAS12 at Jefferson Lab. Data taking and analysis for unpolarized and polarized deuterium and hydrogen targets are part of this project. In addition, the PI will lead the efforts in software development, characterization, reconstruction, and calibration as the analysis coordinator of a second hybrid ring imaging Cherenkov detector (RICH) which is under construction. This detector will identify in the momentum range of 3 to 8 GeV/c. Undergraduates play an integral part in this project, which provides them with opportunities to further their training and education outside of the classroom. This will include: gaining experience in the design, assembly, and testing of modern particle physics detectors, high tech fast electronics, and scientific data analysis.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.

众所周知，质子和中子是由构成质子和中子子结构的成分制成的，称为夸克和胶子。该项目的目的是测量夸克的位置和动量分布，并在核培养基中建立三维夸克图。这些知识为我们对核问题的理解基于其内部成分的动态提供了基础。使用这些信息，理论模型显示了如何使用质子和中子的组成部分来建立其基本的内在特性，例如它们的整体大小和量子机械旋转。该奖项将每年支持两名本科生，因为他们同时学习硬件和软件技能，这将为STEM劳动力的职业做好准备。该项目吸引了PI和Duquesne大学的本科生的研究，旨在使用Jefferson Lab的CLAS12使用半包含Pions和Kaons的Parton分布进行研究。对非极化和极化氘和氢靶标的数据获取和分析是该项目的一部分。此外，PI将领导软件开发，表征，重建和校准方面的努力，作为正在建设中的第二个混合环成像Cherenkov检测器（Rich）的分析协调员。该检测器将在3至8 GEV/c的动量范围内识别。本科生在该项目中起着不可或缺的作用，这为他们提供了在课堂外进一步培训和教育的机会。这将包括：在现代粒子物理探测器，高科技快速电子设备以及科学数据分析的设计，组装和测试方面获得经验。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知识分子优点和更广泛影响的评估标准通过评估来进行评估的。

项目成果

期刊论文数量（27）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Observation of Correlations between Spin and Transverse Momenta in Back-to-Back Dihadron Production at CLAS12

CLAS12 背靠背双强子生产中自旋和横向动量之间相关性的观察

DOI：
10.1103/physrevlett.130.022501
发表时间：
2023
期刊：
Physical Review Letters
影响因子：
8.6
作者：
Avakian, H.;Hayward, T. B.;Kotzinian, A.;Armstrong, W. R.;Atac, H.;Ayerbe Gayoso, C.;Baashen, L.;Baltzell, N. A.;Barion, L.;Bashkanov, M.
通讯作者：
Bashkanov, M.

Probing for high-momentum protons in He4 via the He4(e,e′p)X reactions

通过 He4(e,e−p)X 反应探测 He4 中的高动量质子

DOI：
10.1103/physrevc.105.064003
发表时间：
2022
期刊：
Physical Review C
影响因子：
3.1
作者：
Iqbal, S.;Benmokhtar, F.;Ivanov, M.;See, N.;Aniol, K.;Higinbotham, D. W.;Boyd, C.;Gadsby, A.;Goodwill, J. S.;Finton, D.
通讯作者：
Finton, D.

12C(e,e'pN) measurements of short range correlations in the tensor-to-scalar interaction transition region

张量到标量相互作用过渡区域的短程相关性的 12C(e,epN) 测量

DOI：
10.1016/j.physletb.2021.136523
发表时间：
2021
期刊：
Physics Letters B
影响因子：
4.4
作者：
Korover, I.;Pybus, J.R.;Schmidt, A.;Hauenstein, F.;Duer, M.;Hen, O.;Piasetzky, E.;Weinstein, L.B.;Higinbotham, D.W.;Adhikari, S.
通讯作者：
Adhikari, S.

Observation of large missing-momentum (e,e′p) cross-section scaling and the onset of correlated-pair dominance in nuclei

观察大缺失动量 (e,e-p) 横截面缩放和原子核中相关对优势的开始

DOI：
10.1103/physrevc.107.l061301
发表时间：
2023
期刊：
Physical Review C
影响因子：
3.1
作者：
Korover, I.;Denniston, A. W.;Kiral, A.;Schmidt, A.;Lovato, A.;Rocco, N.;Nikolakopoulos, A.;Weinstein, L. B.;Piasetzky, E.;Hen, O.
通讯作者：
Hen, O.

Studies of partonic distributions using kaon SIDIS

使用 kaon SIDIS 研究部分分布