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SUSY breaking by a metastable ground state : why the early universe preferred the non-supersymmetric vacuum.

Abel, S. A. and Chu, C-S. and Jaeckel, J. and Khoze, V. V. (2007) 'SUSY breaking by a metastable ground state : why the early universe preferred the non-supersymmetric vacuum.', Journal of high energy physics., 2007 (01). 089.

Abstract

Supersymmetry breaking in a metastable vacuum is re-examined in a cosmological context. It is shown that thermal effects generically drive the Universe to the metastable minimum even if it begins in the supersymmetry-preserving one. This is a generic feature of the ISS models of metastable supersymmetry breaking due to the fact that SUSY preserving vacua contain fewer light degrees of freedom than the metastable ground state at the origin. These models of metastable SUSY breaking are thus placed on an equal footing with the more usual dynamical SUSY breaking scenarios.

Item Type:Article
Keywords:Supersymmetry breaking, Supersymmetry and duality, Cosmology of theories beyond the SM.
Full text:PDF (arXiv version) - Other (183Kb)
Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1088/1126-6708/2007/01/089
Publisher statement:© SISSA 2007. Published by IOP Publishing for SISSA. This is an author-created, un-copyedited version of an article accepted for publication in Journal of high energy physics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at 10.1088/1126-6708/2007/01/089.
Record Created:07 May 2008
Last Modified:17 Jun 2015 12:11

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