MSSM curvaton in the gauge-mediated SUSY breaking

Abstract

We study the curvaton scenario using the MSSM flat directions in the gauge-mediated SUSY breaking model. We find that the fluctuations in the both radial and phase directions can be responsible for the density perturbations in the universe through the curvaton mechanism. Although it has been considered difficult to have a successful curvaton scenario with the use of those flat directions, it is overcome by taking account of the finite temperature effects, which induce a negative thermal logarithmic term in the effective potential of the flat direction.

12 pages

References in corpus (6)

• Adiabatic density perturbations and matter generation from the MSSM
• The curvaton scenario in supersymmetric theories
• The Peccei-Quinn Field as Curvaton
• CMB Anisotropy from Baryogenesis by a Scalar Field
• Large Scale Structure from the Higgs fields of the Supersymmetric Standard Model
• Affleck-Dine mechanism with negative thermal logarithmic potential

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