Identifying the curvaton within MSSM

Allahverdi, Rouzbeh and Enqvist, Kari and Jokinen, Asko and Mazumdar, Anupam (2006) Identifying the curvaton within MSSM. Journal of Cosmology and Astroparticle Physics, 2006 (10). ISSN 1475-7516

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We consider inflaton couplings to MSSM flat directions and the thermalization of the inflaton decay products, taking into account gauge symmetry breaking due to flat direction condensates. We then search for a suitable curvaton candidate among the flat directions, requiring an early thermally induced start for the flat direction oscillations to facilitate the necessary curvaton energy density dominance. We demonstrate that the supersymmetry breaking $A$-term is crucial for achieving a successful curvaton scenario. Among the many possible candidates, we identify the ${\bf u_1dd}$ flat direction as a viable MSSM curvaton.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Cosmology and Astroparticle Physics
Additional Information:
9 pages. Discussion on the evaporation of condensate added, final version published in JCAP
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19 Apr 2013 09:05
Last Modified:
21 Nov 2022 23:33