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High Energy Physics - Phenomenology

arXiv:1403.4350 (hep-ph)
[Submitted on 18 Mar 2014 (v1) , last revised 3 Apr 2014 (this version, v2)]

Title: The Gluon Propagator with Two-loop Schwinger-Dyson Equations

Title: 胶子传播子的两圈Schwinger-Dyson方程

Authors:Joseph Meyers, Eric S. Swanson
Abstract: Gluon, ghost, and quark propagators are computed in the Schwinger-Dyson formalism. The full set of one-loop and two-loop contributions to the gap equations are evaluated for the first time. A new and efficient method for dealing with quadratic divergences is presented and a consistent renormalization method is proposed. We find that the two-loop contribution to the propagators is subleading, good fits to lattice data are possible, and reliable vertex models are important to obtaining desired ultraviolet, infrared, and gauge-symmetric behavior.
Comments: 13 pages, 6 figures. v2: new figures, added references and discussion
Subjects: High Energy Physics - Phenomenology (hep-ph) ; High Energy Physics - Theory (hep-th)
Cite as: arXiv:1403.4350 [hep-ph]
  (or arXiv:1403.4350v2 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.1403.4350
Journal reference: Phys. Rev. D 90, 045037 (2014)
Related DOI: https://doi.org/10.1103/PhysRevD.90.045037

Submission history

From: Eric S. Swanson [view email]
[v1] Tue, 18 Mar 2014 05:44:03 UTC (90 KB)
[v2] Thu, 3 Apr 2014 20:49:21 UTC (120 KB)
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