Hadronic Structure and Dynamics

本文提出了利用有效场理论、手性微扰理论和1/Nc展开方法研究低能和中能强子的结构和动力学。介子扇区的主要研究对象是eta和eta'衰变，但也要应用重夸克对称研究重-轻介子半轻子衰变中的强相互作用效应。在重子区，将在1/Nc展开的框架下研究激发态重子质量，以及π - n耦合中的同位旋破断和核子的em辐射修正。一种新的有效场论处理双核子系统的公式将被开发出来。许多项目支持JLAB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.