Fate of the false monopoles: Induced vacuum decay
DSpace at IIT Bombay
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Title |
Fate of the false monopoles: Induced vacuum decay
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Creator |
KUMAR, B
PARANJAPE, MB YAJNIK, UA |
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Subject |
supersymmetry breaking
phase-transition early universe field-theory dissociation |
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Description |
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).].
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Publisher |
AMER PHYSICAL SOC
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Date |
2011-07-16T20:56:56Z
2011-12-26T12:49:57Z 2011-12-27T05:35:48Z 2011-07-16T20:56:56Z 2011-12-26T12:49:57Z 2011-12-27T05:35:48Z 2010 |
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Type |
Article
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Identifier |
PHYSICAL REVIEW D, 82(2), -
1550-7998 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 |
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Language |
en
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