In:
SciPost Physics, Stichting SciPost, Vol. 5, No. 6 ( 2018-12-21)
Abstract:
We compute correlation functions of three-dimensional Landau-gauge
Yang-Mills theory with the Functional Renormalisation Group. Starting from the classical action as only input, we calculate the
non-perturbative ghost and gluon propagators as well as the momentum-dependent ghost-gluon, three-gluon, and four-gluon vertices in
a comprehensive truncation scheme. Compared to the physical case of four spacetime dimensions, we need more sophisticated truncations due to
significant contributions from non-classical tensor structures. In particular, we apply a special technique to compute the tadpole diagrams
of the propagator equations, which captures also all perturbative two-loop effects, and compare our correlators with lattice and
Dyson-Schwinger results.
Type of Medium:
Online Resource
DOI:
10.21468/SciPostPhys
DOI:
10.21468/SciPostPhys.5.6.066
Language:
Unknown
Publisher:
Stichting SciPost
Publication Date:
2018
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