Parametrization of Fully Dressed Quark Propagator

• Published in: Communications in theoretical physics Vol. 43; no. 1; pp. 147 - 150
• Main Author: MAWei-Xing ZHUJi-Zhen ZHOULi-Juan SHENPeng-Nian HUZhao-Hui
• Format: Journal Article
• Language: English
• Published: IOP Publishing 15.01.2005; Institute for Theoretical Physics, the Chinese Academy of Sci%Department of Information and Computing Science, Guangxi University of Technology, Liuzhou 545006, China%Institute of High Energy Physics, the Chinese Academy of Sciences, Beijing 100039, China; Institute for Theoretical Physics, the Chinese Academy of Sciences, Beijing 100080, China; Department of Information and Computing Science, Guangxi University of Technology, Liuzhou 545006, China; Institute of High Energy Physics, the Chinese Academy of Sciences, Beijing 100039, China
• Subjects: 代森-施温格方程; 夸克传播函数; 真空冷凝物结构; 自能量; quark propagator; structure of vacuum condensate; quark self-energy; Dyson-Schwinger equations
• ISSN: 0253-6102
• DOI: 10.1088/0253-6102/43/1/028

Based on an extensive study of the Dyson-Schwinger equations for a fully dressed quark propagator in the “rainbow” approximation, a parametrized form of the quark propagator is suggested. The corresponding quark selfenergy ∑f and the structure of non-local quark vacuum condensate <0|:-↑q(x)q(0):|0> are investigated. The algebraic form of the quark propagator proposed in this work describes a confining quark propagation, and is quite convenient to be used in any numerical calculations.