Research in Strong-Interaction Theory

在美国国家科学基金会的部分支持下，俄亥俄州立大学的核理论小组研究了一系列涉及强相互作用的问题，强相互作用是造成我们所知道的物质的原因。这些研究大多涉及量子色动力学（QCD）的直接研究，夸克和胶子的相对论场论，或者它与低能强相互作用的有效理论的联系。量子cd在描述原子核及其组成的能量尺度上仍未得到解决。核理论家面临的挑战是开发直接求解强相互作用体系中量子cd的方法，发现成功的核现象学与量子cd之间的联系，并根据低能自由度（强子）开发有效的量子cd描述。核理论小组的研究在这些领域都取得了进展。＊＊＊

9511923 Clark The Nuclear Theory Group at The Ohio State University, supported in part by the National Science Foundation, studies a broad range of problems involving the strong interaction which is responsible for matter as we know it. Most of this research involves either the direct study of quantum chromodynamics (QCD), the relativistic field theory of quarks and gluons, or its connection to effective theories of the strong interaction at low energies. QCD remains unsolved at energy scales relevant for describing nuclei and their constituents. The challenge for nuclear theorists is to develop methods for directly solving QCD in the strong-interaction regime, to discover connections between successful nuclear phenomenology and QCD, and to develop effective descriptions of QCD in terms of low-energy degrees of freedom (hadrons). Research in the Nuclear Theory Group is progressing in each of these areas. ***