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Parametrization of Fully Dressed Quark Propagator |
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| Authors: | MA Wei-Xing ZHU Ji-Zhen ZHOU Li-Juan SHEN Peng-Nian HU Zhao-Hui |
| Institution: | 1. Department of Information and Computing Science, Guangxi University of Technology, Liuzhou 545006, China ;2. Institute of High Energy Physics, the Chinese Academy of Sciences, Beijing 100039, China ;3. Institute for Theoretical Physics, the Chinese Academy of Sciences, Beijing 100080, China |
| Abstract: | 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 self-energy Σf and the structure of non-local quark vacuum condensate <0|:\bar{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. |
| Keywords: | quark propagator Dyson-Schwinger equations quark self-energy structure of vacuum condensate |
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