The curvaton scenario in the MSSM and predictions for non-Gaussianity

Anupam Mazumdar, Seshadri Nadathur

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Abstract

We provide a model in which both the inflaton and the curvaton are obtained from within the minimal supersymmetric standard model, with known gauge and Yukawa interactions. Since now both the inflaton and curvaton fields are successfully embedded within the same sector, their decay products thermalize very quickly before the electroweak scale. This results in two important features of the model: first, there will be no residual isocurvature perturbations, and second, observable non-Gaussianities can be generated with the non-Gaussianity parameter
fNL ∼ O(5−1000) being determined solely by the combination of weak-scale physics and the standard model Yukawa interactions.
Original languageEnglish
Article number111302
Number of pages4
JournalPhysical Review Letters
Volume108
Issue number11
Early online date13 Mar 2012
DOIs
Publication statusPublished - 16 Mar 2012

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