Structure of the Nucleon and Few-Body Nuclear Systems with Electron Scattering

具有电子散射的核子和少体核系统的结构

• 批准号: 0355181
• 负责人: Gerassimos Petratos
• 金额: $ 32.1万
• 依托单位: Kent State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-06-15 至 2008-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0355181&HistoricalAwards=false
• 关键词: Structure; Nucleon; Few; Body; Nuclear

This award provides support to investigate the internal structure anddynamics of the proton and neutron, and of the lightest nuclei innature: deuterium and helium. The investigation will be based onexperimental studies of high-energy electrons scattering off hydrogen,deuterium, tritium and helium nuclei. The proposed research will usethe high-intensity, high-energy electron beam of the Thomas JeffersonNational Accelerator Facility to bombard nuclei in cryogenic targetenvironments and to study the nuclear reaction products with particledetection devices using superconducting magnets and subatomic particledetectors. The results are expected to provide fundamental informationon the distributions of the three quarks inside the proton and neutron,on the quantum mechanical wave functions of deuterium and helium, and onthe mechanism of the interaction of the proton and neutron constituentsof these two light nuclei. The expected experimental data from theproposed investigation will offer valuable input to our understanding ofthe structure of the proton and neutron in terms of their three quarkconstituents and to the establishment of a consistent modern theorydescribing the simplest nuclear systems.

该奖项为研究质子和中子的内部结构和动力学以及自然界中最轻的核：氘和氦提供了支持。这项调查将基于对氢、氘、氚和氦核的高能电子散射的实验研究。拟议的研究将使用托马斯杰斐逊国家加速器设施的高强度，高能电子束在低温目标环境中轰击原子核，并使用超导磁体和亚原子粒子探测器的粒子探测装置研究核反应产物。这些结果有望为质子和中子内部三夸克的分布、氘和氦的量子力学波函数以及这两个轻核中质子和中子成分相互作用的机制提供基本信息。预期的实验数据从提出的调查将提供宝贵的输入，我们的质子和中子的结构的理解，在他们的三个夸克成分和建立一个一致的现代理论描述最简单的核系统。