The Transition to a Quark-Gluon Description of the Nucleon: A Renewal

该项目支持汉普顿大学(HU)核实验小组的研究和教育工作。该小组成立于15年前，目的是解决非洲裔美国人严重不足的科学领域的关键国家需求。根据美国物理研究所的统计，胡士泰现在每年毕业于非洲裔美国人的物理学博士学位的一半以上。胡小组带头研究了低能夸克-强二象性，更广泛地说，研究了重子-介子和夸克-胶子对核子的描述，包括核介质对这些核子的影响，以及对低能碎裂过程的研究。在另一项重大努力中，该小组成功地为杰斐逊实验室(JLab)的奖励实验开发了有史以来第一个有效的自由中子靶。在接下来的几年里，该小组将专注于(I)对仍在排队或刚刚执行的JLab实验的分析；(Ii)对JLabStructure功能计划结果的全球分析，重点是大的x区域；(Iii)Miner A项目的准备工作，这是一项中微子物理工作，旨在准确地绘制原子核对轴向耦合的响应图；以及(Iv)为JLab 12GeV科学与建设项目的准备工作。

This project supports the research and education efforts of theHampton University (HU) nuclear experimental group. This group wasestablished 15 years ago to address a critical national need in ascience where African-Americans are severely under-represented.According to American Institute of Physics statistics, HU nowgraduates over half of the doctoral degrees in physics awarded toAfrican-Americans annually.The HU group has spearheaded research in low-energy quark-hadronduality, and, more generally, the transition between the Baryon-Mesonand the Quark-Gluon description of nucleons, including effects of thenuclear medium on these nucleons, and the investigation of low-energyfragmentation processes. In another major effort, the group hassuccessfully developed a first-ever effective free neutron target forthe BONUS experiment at Jefferson Lab (JLab). During the upcomingyears, the group will focus on (i) the analysis of JLab experimentsstill in queue or just executed; (ii) global analysis of JLabstructure function program results, including proton, deuteron, andnuclear targets, with an emphasis on the large x region; (iii)preparation for the MINER A project, a neutrino physics effort toprecisely map the response of nuclei to the axial couplings; and (iv)gearing up for preparations for JLab 12 GeV science and constructionprojects.