Flat direction condensate instabilities in the MSSM
High Energy Physics - Phenomenology
2009-10-31 v1
Abstract
Coherently oscillating scalar condensates formed along flat directions of the MSSM scalar potential are unstable with respect to spatial perturbations if the potential is flatter than phi^2, resulting in the formation of non-topological solitons such as Q-balls. Using renormalization group we calculate the corrections to the phi^2 potential for a range of flat directions and show that unstable condensates are a generic feature of the MSSM. Exceptions arise for an experimentally testable range of stop and gluino masses when there are large admixtures of stops in the flat direction scalar.
Keywords
Cite
@article{arxiv.hep-ph/0004050,
title = {Flat direction condensate instabilities in the MSSM},
author = {K. Enqvist and A. Jokinen and J. McDonald},
journal= {arXiv preprint arXiv:hep-ph/0004050},
year = {2009}
}
Comments
9 pages, 9 encapsulated postscript figures