Zaballa, I. and Rodriguez, Y. and Lyth, D. H. (2006) Higher order contributions to the primordial non-Gaussianity. Journal of Cosmology and Astroparticle Physics.Full text not available from this repository.
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.
|Journal or Publication Title:||Journal of Cosmology and Astroparticle Physics|
|Uncontrolled Keywords:||cosmological perturbation theory ; inflation ; physics of the early universe|
|Departments:||Faculty of Science and Technology > Physics|
|Deposited By:||Mr Michael Dunne|
|Deposited On:||17 Jun 2008 14:08|
|Last Modified:||04 Mar 2016 01:30|
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