Non-gaussianity for a Two Component Hybrid Model of Inflation

Details Non-gaussianity for a Two Component Hybrid Model of Inflation Non-gaussianity for a Two Component Hybrid Model of Inflation

2006-04-28

arxiv.org/abs/astro-ph/0604611v2

JCAP 0610 (2006) 015

Astronomy and Astrophysics

Astrophysics

10 pages and 5 figures. More extensive analysis of model, which shows that observable fnl is possible

Scientific paper

10.1088/1475-7516/2006/10/015

We consider a two component hybrid inflation model, in which two fields drive inflation. Our results show that this model generates an observable non-gaussian contribution to the curvature spectrum, within the limits allowed by the recent WMAP year 3 data. We show that if one field has a mass less than zero, and an initial field value less than 0.06Mpl while the other field has a mass greater than zero, and initial field value ranging between 0.5Mpl and Mpl then the non-gaussianity is observable with 1

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