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

Mazumdar, Anupam and Nadathur, Seshadri (2012) The curvaton scenario in the MSSM and predictions for non-Gaussianity. Physical review letters, 108 (11). ISSN 1079-7114

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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: firstly, there will be no residual isocurvature perturbations, and secondly, observable non-Gaussianities can be generated with the non-Gaussianity parameter $f_\mathrm{NL}\sim {\cal O}(5-1000)$ being determined solely by the combination of weak-scale physics and the Standard Model Yukawas.

Item Type:
Journal Article
Journal or Publication Title:
Physical review letters
Additional Information:
4 pages, no figures © 2012 American Physical Society
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
55941
Deposited By:
Deposited On:
19 Jul 2012 15:39
Refereed?:
Yes
Published?:
Published
Last Modified:
05 Dec 2020 01:39