Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2000-04-06
Phys.Lett. B483 (2000) 191-195
Physics
High Energy Physics
High Energy Physics - Phenomenology
9 pages, 9 encapsulated postscript figures
Scientific paper
10.1016/S0370-2693(00)00578-5
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.
Enqvist Kari
Jokinen Asko
McDonald Janece
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