Hadronic Structure and Dynamics

这是一个用有效场论/手征微扰理论和1/nC展开方法研究中低能强子结构和动力学的建议。介子区的主要研究对象是ETA和ETA衰变，但也将利用重夸克对称性研究重轻介子半轻子衰变中的强相互作用效应。在重子区，激发的重子质量将在1/nC展开的框架内进行研究，并将讨论pi-N耦合中的同位旋断裂和核子的em辐射修正。二核子系统的有效场论处理的新公式有待发展。许多项目支持联合实验室的实验工作。

This is a proposal to study the structure and dynamics of hadrons at low and intermediate energies using effective field theories/chiral perturbation theory, and 1/Nc expansion methods. The main objects of research in the meson sector are eta and eta' decays, but also strong interaction effects in the semi-leptonic decays of heavy-light mesons are to be studied applying heavy quark symmetry. In the baryon sector excited baryon masses will be studied in the framework of the 1/Nc expansion, and isospin breaking in pi-N couplings and em radiative corrections for nucleons will be topics. A new formulation of the effective field theory treatment of the two-nucleon system is to be developed. Many of the projects support the experimental effort at JLAB.