U.S.-Australia Cooperative Research: Studies in Non-Perturbative QCD and Hadron Dynamics

该项目的主要美国参与者是肯特州立大学的彼得·坦迪教授和阿贡国家实验室的克雷格·罗伯茨博士。参与该项目的还有汉普顿大学的迈克尔·弗兰克博士和肯特州立大学由国家科学基金会资助的博士后助理大卫·卡哈纳博士。澳大利亚的主要参与者是墨尔本大学的布鲁斯·麦凯勒教授和南澳大利亚州弗林德斯大学的雷金纳德·卡希尔博士。该奖项将为美国参与者提供为期两年的旅行支持，让他们参观澳大利亚同事的实验室。将开展的合作研究是在量子色动力学(QCD)和QCD模型的非微扰研究领域。这项实验工作将探索核动力学中在重子-介子自由度和夸克-胶子自由度之间没有明确区分的问题。解决这些问题的重要工具是有效的强子动力学QCD模型。研究的内容包括通过研究QCD Schwinger-Dyson方程确定夸克传播子的结构，协变的构造，基于这些研究的QCD禁闭模型，夸克结构和模型中重子和介子的相互作用，以及这些夸克和夸克-反夸克复合材料的电弱耦合和形状因子。麦凯勒博士和卡希尔博士的互访由澳大利亚工业、技术和商务部(DITAC)提供支持。

The principal U.S. participants in this project are Prof. Peter Tandy of Kent State University and Dr. Craig Roberts of Argonne National Laboratory. Also associated with the project are Dr. Michael Frank from Hampton University and Dr. David Kahana, an NSF-supported post-doctoral associate at Kent State University. The primary Australian participants are Prof. Bruce McKellar of the University of Melbourne and Dr. Reginald Cahill of the Flinders University of South Australia. This award will provide travel support over a two year period for the American participants to visit the laboratories of the Australian colleagues. The cooperative research to be undertaken is in the area of non-perturbative studies in Quantum Chromodynamics (QCD) and QCD modelling. The experimental work will probe issues in nuclear dynamics that have no clear separation between baryon- meson degrees of freedom and quark-gluon degrees of freedom. Important tools for addressing such issues are effective QCD models of hadron dynamics. The topics to be investigated include the determination of the structure of the quark propagator through study of the QCD Schwinger-Dyson equations, the construction of covariant, confining models of QCD based on these studies, the quark structure and interactions of baryons and mesons in such models and the electroweak couplings and form factors of these quark and quark-antiquark composites. The exchange visits by Drs. McKellar and Cahill are being supported through the Australian Department of Industry, Technology and Commerce (DITAC).