Stability and hierarchy problems in string inspired braneworld scenarios

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We generalise the RS braneworld model by taking into account a general stringy bulk containing the scalar dilaton field and the two-form Kalb-Ramond field, apart from gravity. Assuming small fluctuations around a RS background, the back-reacted warp factor is obtained. It is shown that the fine tuning problem in connection with the Higgs mass reappears in a new guise and the effective modular potential fails to stabilise the braneworld.
5 Pages, Revtex. Minor changes. To appear in Europhysics Letters

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

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http://salesiana.dossiersoluciones.com/handle/123456789/205622

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0704.3119
 http://arxiv.org/abs/0704.3119
 Europhys.Lett.83:51002,2008
 doi:10.1209/0295-5075/83/51002

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arXiv