Natural inflation in 5D warped backgrounds

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In light of the five-year data from the Wilkinson Microwave Anisotropy Probe (WMAP), we discuss models of inflation based on the pseudo Nambu-Goldstone potential predicted in five-dimensional gauge theories for different backgrounds: flat Minkowski, anti-de Sitter, and dilatonic spacetime. In this framework, the inflaton potential is naturally flat due to shift symmetries and the mass scales associated with it are related to 5D geometrical quantities.
10 pages, 8 figures; matches version to appear in Phys. Rev. D

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High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/204713

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0711.0022
 http://arxiv.org/abs/0711.0022
 Phys.Rev.D78:023519,2008
 doi:10.1103/PhysRevD.78.023519

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arXiv