Higher order contributions to the primordial non-Gaussianity

Zaballa, I. and Rodriguez, Y. and Lyth, D. H. (2006) Higher order contributions to the primordial non-Gaussianity. Journal of Cosmology and Astroparticle Physics.

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Abstract

In this paper we calculate additional contributions to the part of the non-Gaussianity of the primordial curvature perturbation ζ that comes from the three-point correlator of the field perturbations. We estimate this contribution using the following models for the origin of ζ: single-component inflation, multicomponent chaotic inflation, a two-component 'hybrid' inflationary model and the curvaton scenario. In all of these models, the additional contributions to the primordial non-Gaussianity considered here are too small to ever be detected.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Cosmology and Astroparticle Physics
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3103
Subjects:
ID Code:
9638
Deposited By:
Users 49 not found.
Deposited On:
17 Jun 2008 13:08
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 07:20