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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: Article
    Journal or Publication Title: Physical Review Letters
    Additional Information: 4 pages, no figures © 2012 American Physical Society
    Subjects: Q Science > QC Physics
    Departments:
    ID Code: 55941
    Deposited By: ep_importer_pure
    Deposited On: 19 Jul 2012 16:39
    Refereed?: Yes
    Published?: Published
    Last Modified: 23 Jul 2014 15:01
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/55941

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