Particle decay in false vacuum

A. Gorsky, M. B. Voloshin

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

We revisit the problem of decay of a metastable vacuum induced by the presence of a particle. For the bosons of the aœmaster fielda the problem is solved in any number of dimensions in terms of the spontaneous decay rate of the false vacuum, while for a fermion we find a closed expression for the decay rate in (1+1) dimensions. It is shown that in the (1+1) dimensional case an infrared problem of one-loop correction to the decay rate of a boson is resolved due to a cancellation between soft modes of the field. We also find the boson decay rate in the aœsine-Gordon staircasea model in the limits of strong and weak coupling.

Original languageEnglish (US)
Article number025015
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume73
Issue number2
DOIs
StatePublished - Jan 15 2006

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