Building a non-perturbative quark-gluon vertex from a perturbative one

30th Annual Meeting of the Division of Particles and Fields (DPyC) of the Mexican Physical Society

Bermudez, Rocio^1

Departamento de Investigación en Fisica, Universidad de Sonora, Blvd. Transversal S/N, Hermosillo

83000, Mexico^1

关键词: Chiral symmetry;    Hadron physics;    High-precision;    Quark-gluon;    Strong interaction;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/761/1/012027/pdf
DOI  :  10.1088/1742-6596/761/1/012027

来源: IOP

【 摘 要 】

The quark-gluon vertex describes the electromagnetic and the strong interaction among these particles. The description of this interaction at high precision in both regimes, perturbative and non-perturbative, continues being a matter of interest in the context of QCD and Hadron Physics. There exist very helpful models in the literature that explain perturbative aspects of the theory but they fail describing non-perturbative phenomena, as confinement and dynamic chiral symmetry breaking. In this work we study the structure of the quark-gluon vertex in a non-perturbative regime examining QCD, checking results with QED, and working in the Schwinger-Dyson formalism.