Renormalization flow of Yang-Mills propagators | Zendy

Christian S. Fischer | Zendy; Holger Gies | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Renormalization flow of Yang-Mills propagators

Author(s) -

Christian S. Fischer,

Holger Gies

Publication year - 2004

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2004/10/048

Subject(s) - propagator , physics , gluon , mathematical physics , renormalization , vertex (graph theory) , infrared fixed point , renormalization group , momentum (technical analysis) , vertex function , flow (mathematics) , quantum electrodynamics , quantum mechanics , quantum chromodynamics , mathematics , graph , finance , discrete mathematics , economics , mechanics

We study Landau-gauge Yang-Mills theory by means of a nonperturbative vertexexpansion of the quantum effective action. Using an exact renormalization groupequation, we compute the fully dressed gluon and ghost propagators to lowestnontrivial order in the vertex expansion. In the mid-momentum regime,$p^2\sim\mathcal{O}(1)\text{GeV}^2$, we probe the propagator flow with various{\em ans\"atze} for the three- and four-point correlations. We analyze thepotential of these truncation schemes to generate a nonperturbative scale. Wefind universal infrared behavior of the propagators, if the gluon dressingfunction has developed a mass-like structure at mid-momentum. The resultingpower laws in the infrared support the Kugo-Ojima confinement scenario.Comment: 28 pages, 5 figures. V2: Typos corrected and reference adde

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research