Practical scheme from QCD to phenomena via Dyson-Schwinger equations

Can Tang, Fei Gao, Yu Xin Liu*

*此作品的通讯作者

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摘要

We deliver a scheme to compute the quark propagator and the quark-gluon interaction vertex through the coupled Dyson-Schwinger equations (DSEs) of QCD. We take the three-gluon vertex into account in our calculations, and implement the gluon propagator and the running coupling function fitted by the solutions of their respective DSEs. We obtain the momentum and current mass dependence of the quark propagator and the quark-gluon vertex, and the chiral quark condensate that agrees with previous results excellently. We also compute the quark-photon vertex within this scheme and give the anomalous chromo- and electromagnetic moment of the quark. The obtained results are excellently consistent with previous ones. These applications manifest that the scheme is realistic and then practical for explaining the QCD-related phenomena.

源语言英语
文章编号056001
期刊Physical Review D
100
5
DOI
出版状态已出版 - 3 9月 2019
已对外发布

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引用此

Tang, C., Gao, F., & Liu, Y. X. (2019). Practical scheme from QCD to phenomena via Dyson-Schwinger equations. Physical Review D, 100(5), 文章 056001. https://doi.org/10.1103/PhysRevD.100.056001