1999/09/02 by Martin Schaden, Schaden, Martin · 2 citations
Mathematics · Physics and Astronomy · #Algebraic and Geometric Analysis #Black Holes and Theoretical Physics #Relativity and Gravitational Theory #hep-lat #hep-ph #hep-th
paper · pdf · doi:10.48550/arxiv.hep-th/9909011
4 pages. Much improved argumentation based on a certain (spontaneously broken) SL(2,R) symmetry
arxiv created 2000/01/17 · arxiv updated 2009/11/30
The local action of an SU(2) gauge theory in general covariant Abelian gauges and the associated equivariant BRST symmetry that guarantees the perturbative renormalizability of the model are given. I show that a global SL(2,R) symmetry of the model is spontaneously broken by ghost-antighost condensation at arbitrarily small coupling and leads to propagators that are finite at Euclidean momenta for all elementary fields except the Abelian ``photon''. The Goldstone states form a BRST-quartet. The mechanism eliminates the non-abelian infrared divergences in the perturbative high-temperature expansion of the free energy.