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Graceful exit via monopoles in a theory with O'Raifeartaigh type supersymmetry breaking

DSpace at IIT Bombay

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Title Graceful exit via monopoles in a theory with O'Raifeartaigh type supersymmetry breaking
 
Creator KUMAR, B
YAJNIK, UA
 
Subject phase-transition
early universe
false vacuum
dissociation
topological soliton
supersymmetry breaking
metastable vacua
cosmology
 
Description We study the stability of supersymmetry breaking metastable vacua and supersymmetric vacua in the presence of solitons. The metastable vacua of supersymmetric QCD and those found elsewhere such as in models based on the SU(5) grand unified group support the existence of topological solitons. The vacua containing such topological defects can become unstable against decay into lower energy configurations. We show for a specific model that a finite region of the available parameter space of couplings becomes disallowed due to the presence of monopoles. In a manner similar to previous studies based on cosmic strings, it is shown that soliton solutions arising in supersymmetric theories can put constraints on the range of allowed values of the couplings arising in the theories. Implications for cosmology are discussed. .
 
Publisher ELSEVIER SCIENCE BV
 
Date 2011-07-25T04:24:21Z
2011-12-26T12:49:46Z
2011-12-27T05:35:29Z
2011-07-25T04:24:21Z
2011-12-26T12:49:46Z
2011-12-27T05:35:29Z
2010
 
Type Article
 
Identifier NUCLEAR PHYSICS B, 831(1-2), 162-177
0550-3213
http://dx.doi.org/10.1016/j.nuclphysb.2010.01.011
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6638
http://hdl.handle.net/10054/6638
 
Language en