Complex supergravity quintessence models confronted with Sn Ia data

Details Complex supergravity quintessence models confronted with Sn Ia data Complex supergravity quintessence models confronted with Sn Ia data

2005-11-25

arxiv.org/abs/astro-ph/0511714v1

Phys.Lett.B634:5-8,2006

Astronomy and Astrophysics

Astrophysics

4 pages, 2 figures

Scientific paper

10.1016/j.physletb.2006.01.025

A class of supergravity inspired quintessence models is studied by comparing to cosmological data. The set of considered models includes several previously studied quintessential potentials, as well as the $\Lambda$CDM model. We find that even though the commonly studied supergravity inspired quintessence models fit the data better than the $\Lambda$CDM model, they are a relatively poor fit when compared to the best fit model in the studied class. Our results suggest a low energy scale, less than ${\cal{M}}\sim 1$ TeV, for the effective supergravity potential.

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