Higher order contributions to the primordial non-Gaussianity - INSPIRE

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Higher order contributions to the primordial non-Gaussianity

Ignacio Zaballa
(
- Lancaster U.
)
,
Yeinzon Rodriguez
(
- Santander Industrial U. and
- Antonio Narino U.
)
,
David H. Lyth
(
- Lancaster U.
)

Mar, 2006

6 pages

Published in:

JCAP 06 (2006) 013

e-Print:

astro-ph/0603534 [astro-ph]

DOI:

10.1088/1475-7516/2006/06/013

View in:

ADS Abstract Service

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Abstract: (arXiv)

In this paper we calculate additional contributions to that part of the non-Gaussianity of the curvature perturbation, which come from the three-point correlator of the field perturbations. We estimate this contribution in the following models for its origin: single-component inflation, multi-component 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 be ever detected.

04.70.-s
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References(29)

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