QCD-based Field Theory Modeling of Nuclear Interactions

9414291 Tandy强子物理学的理论研究和计算正在基于QCD的模型场论中进行，适用于当前和未来的核物理问题的非微扰制度。 正在处理的具体议题包括一个限制夸克凝聚模型的核子，离壳结构的传播选定的复合夸克-反夸克介子，穿着夸克和介子的子结构效应的电磁和轴向电流的强子，介子混合有关的电荷对称性破缺的核力。 这项工作的目的是在夸克-胶子动力学和有效的介子-核子动力学之间架起一座桥梁，这对于CEBAF等实验项目来说是必要的，这些项目在强子大小的距离尺度上探测核相互作用。 ***

9414291 Tandy Theoretical investigations and calculations in hadron physics are being carried out within a QCD-based model field theory for the non-perturbative regime appropriate to current and future nuclear physics issues. The specific topics being addressed include a confining quark condensate model of the nucleon, off-shell structure of the propagator for selected composite quark- antiquark mesons, dressed quark and meson substructure effects in electromagnetic and axial currents of hadrons, and meson mixing related to charge symmetry breaking in the nuclear force. The work is aimed at providing a bridge between quark-gluon dynamics and effective meson-nucleon dynamics that will be necessary as experimental programs, such those at CEBAF, probe nuclear interactions at a distance scale within the size hadrons. ***