Mass Generation in Continuum SU(2) Gauge Theory in Covariant Abelian Gauges

Details Mass Generation in Continuum SU(2) Gauge Theory in Covariant Abelian Gauges Mass Generation in Continuum SU(2) Gauge Theory in Covariant Abelian Gauges

1999-09-02

arxiv.org/abs/hep-th/9909011v3

Physics

High Energy Physics

High Energy Physics - Theory

4 pages. Much improved argumentation based on a certain (spontaneously broken) SL(2,R) symmetry

Scientific paper

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.

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