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arXiv · astro-ph/0603830

Coleman-Weinberg Potential In Good Agreement With WMAP

Q. Shafi·V. N. Senoguz
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Abstract

We briefly summarize and update a class of inflationary models from the early eighties based on a quartic (Coleman-Weinberg) potential for a gauge singlet scalar (inflaton) field. For vacuum energy scales comparable to the grand unification scale, the scalar spectral index n_s=0.94-0.97, in very good agreement with the WMAP three year results. The tensor to scalar ratio r<~0.14, while alpha=dn/dlnk is =~-10^-3. An SO(10) version naturally explains the observed baryon asymmetry via non-thermal leptogenesis.

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Q. Shafi, V. N. Senoguz. 2006-06-05. Coleman-Weinberg Potential In Good Agreement With WMAP. https://doi.org/10.1103/physrevd.73.127301

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