Supersymmetric Singlet Majorons and Cosmology

Abstract

We examine cosmological constraints on the lepton number breaking scale in supersymmetric singlet majoron models. Special attention is drawn to the model dependence arising from the particular choice of a certain majoron extension and a cosmological scenario. We find that the bounds on the symmetry breaking scale can vary substantially. Large values of this scale can be allowed if the decoupling temperature of smajoron and majorino exceeds the reheating temperature of inflation. In the opposite case an upper bound depending on the majoron model can be obtained which, however, is unlikely to be much larger than $10^{10}$ GeV.

14 pages, 2 figures, IC/94/40, SNUTP 94-15, TUM - TH - 164/94

References in corpus (2)

• Axino Mass
• Planck Scale Effects on the Majoron

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• Inflationary Gravitational Waves and the Evolution of the Early Universe
• Fermionic partner of Quintessence field as candidate for dark matter
• Natural $\mu$-term with Peccei-Quinn Symmetry
• A Single Scale Theory for Cold and Hot Dark Matter
• Strangeness enhancement in the String Fusion Model Code
• Structure Formation with Majoron Supermultiplet