The primordial density perturbation in the curvaton scenario

Authors :: David H. Lyth
David Wands
Carlo Ungarelli
Source :: Lyth, D, Ungarelli, C & Wands, D 2003, ' Primordial density perturbation in the curvaton scenario ', Physical Review D, vol. 67, no. 2, pp. 023503 . https://doi.org/10.1103/PhysRevD.67.023503
Publication Year :: 2002
Publisher :: arXiv, 2002.
Abstract: We analyse the primordial density perturbation when it is generated by a `curvaton' field different from the inflaton. In some cases this perturbation may have large isocurvature components, fully correlated or anti-correlated with the adiabatic component. It may also have a significant non-Gaussian component. All of these effects are calculated in a form which will enable direct comparison with current and forthcoming observational data.<br />Comment: 13 pages, latex with revtex, no figures; v2 caveat added to calculation of isocurvature perturbations in section IV; v3 minor corrections, references added, to appear in Phys Rev D

Database :: OpenAIRE
Journal :: Lyth, D, Ungarelli, C & Wands, D 2003, ' Primordial density perturbation in the curvaton scenario ', Physical Review D, vol. 67, no. 2, pp. 023503 . https://doi.org/10.1103/PhysRevD.67.023503
Accession number :: edsair.doi.dedup.....1a2162663b2a57a093ae8c61f75d7691
Full Text :: https://doi.org/10.48550/arxiv.astro-ph/0208055