Parametrization of Fully Dressed Quark Propagator  

作　　者：MAWei-Xing ZHUJi-Zhen ZHOULi-Juan SHENPeng-Nian HUZhao-Hui 

机构地区：[1]DepartmentofInformationandComputingScience,GuangxiUniversityofTechnology,Liuzhou545006,China／／InstituteofHighEnergyPhysics,theChineseAcademyofSciences,Beijing100039,China [2]DepartmentofInformationandComputingScience,GuangxiUniversityofTechnology,Liuzhou545006,China [3]InstituteofHighEnergyPhysics,theChineseAcademyofSciences,Beijing100039,China／／InstituteforTheoreticalPhysics,theChineseAcademyofSciences,Beijing100080,China

出　　处：《Communications in Theoretical Physics》2005年第1期147-150,共4页理论物理通讯（英文版）

基　　金：国家自然科学基金

摘　　要：Based on an extensive study of the Dyson-Schwinger equations for a fullydressed quark propagator in the 'rainbow' approximation, a parametrized form of the quark propagatoris suggested. The corresponding quark self-energy Σ_f and tie structure of non-local quark vacuumcondensate 【 0 | : q(x)q(0) : | 0 】 are investigated. The algebraic form of the quark propagatorproposed in this work describes a confining quark propagation, and is quite convenient to be used inany numerical calculations.

关 键 词：quark propagator dyson-schwinger equations quark self-energy structure ofvacuum condensate 

分 类 号：O572.2[理学—粒子物理与原子核物理]