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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/4528

Title: Fate of the false monopoles: Induced vacuum decay
Authors: KUMAR, B
PARANJAPE, MB
YAJNIK, UA
Keywords: supersymmetry breaking
phase-transition
early universe
field-theory
dissociation
Issue Date: 2010
Publisher: AMER PHYSICAL SOC
Citation: PHYSICAL REVIEW D, 82(2), -
Abstract: We study a gauge theory model where there is an intermediate symmetry breaking to a metastable vacuum that breaks a simple gauge group to a U(1) factor. Such a model admits the existence of metastable 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 semiclassical 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 S. R. Coleman [Subnuclear series 13, 297 (1977).].
URI: http://dx.doi.org/10.1103/PhysRevD.82.025022
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4528
http://hdl.handle.net/10054/4528
ISSN: 1550-7998
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