Brane curvature and supernovae Ia observations

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It is well known that modifications to the Friedmann equation on a warped brane in an anti de Sitter bulk do not provide any low energy distinguishing feature from standard cosmology. However, addition of a brane curvature scalar in the action produces effects which can serve as a distinctive feature of brane world scenarios and can be tested with observations. The fitting of such a model with supernovae Ia data (including SN 1997ff at $z\approx1.7$) comes out very well and predicts an accelerating universe.
5 pages, RevTeX. Revised version. Change in title, 1 figure added

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High Energy Physics - Theory, Astrophysics, General Relativity and Quantum Cosmology, High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/51369

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-th/0206193
 http://arxiv.org/abs/hep-th/0206193

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arXiv