Experimental Nuclear Physics Research

这笔赠款的资金将用于支持我们小组在核子结构和基本对称性测试项目中的努力。在第一年，我们将完成G0实验的数据分析，在该实验中，违反宇称的电子散射被用来确定奇怪夸克对质子电荷和磁性的贡献。在授予期间的晚些时候，我们将参与一个实验，该实验利用Muon对的产生来探测质子中反夸克的分布(FNAL实验E906)。后一种测量解决了一些关于质子的非微扰QCD结构的悬而未决的问题，例如质子内部结构中的电荷对称度，以及反夸克在自由和束缚核子的基态性质中的作用。我们小组还参与了使用中子β衰变的精确测量来测试基本对称性的实验。这个小组的研究的更广泛的影响主要是通过为研究生和本科生提供出色的研究机会。学生接触核物理概念，获得开发硬件的实践经验，对实验做出重大贡献，并有机会参观和参与主要国家实验室的项目。

Funds from this grant will be used to support our group's efforts in the projects in nucleon structure and in tests of fundamental symmetries. In the first year, we will be completing data analysis from the G0 experiment in which parity-violating electron scattering is used to determine the contributions of strange quarks to the proton's charge and magnetism. Later in the grant period we will participate in an experiment that uses muon pair production to probe the distribution of antiquarks in the proton (FNAL experiment E906). This latter measurement addresses a number of unanswered questions about the nonperturbative QCD structure of the proton, such as the degree of charge symmetry in proton's internal structure and the role of antiquarks in ground state properties of free and bound nucleons. Our group is also participating in experiments that use precision measurements of neutron beta decay to test fundamental symmetries. The broader impact of this group's research is primarily through providing outstanding research opportunities for both graduate and undergraduate students. Students are exposed to nuclear physics concepts, get hands-on experience developing hardware, make significant contributions to the experiments, and have the opportunity to visit and participate in programs at major national laboratories.