Fate of the false monopoles: induced vacuum decay

Details Fate of the false monopoles: induced vacuum decay Fate of the false monopoles: induced vacuum decay

2010-06-03

arxiv.org/abs/1006.0693v1

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, 4 figures

Scientific paper

We study a gauge theory model where there is an intermediate symmetry breaking to a meta- stable vacuum that breaks a simple gauge group to a U (1) factor. Such models admit the existence of meta-stable magnetic monopoles, which we dub false monopoles. We prove the existence of these monopoles in the thin wall approximation. We determine the instantons for the collective coordinate that corresponds to the radius of the monopole wall and we calculate the semi-classical tunneling rate for the decay of these monopoles. The monopole decay consequently triggers the decay of the false vacuum. As the monopole mass is increased, we find an enhanced rate of decay of the false vacuum relative to the celebrated homogeneous tunneling rate due to Coleman [1].

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