Testing a string dilaton model with experimental and observational data

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We test the prediction of the time variation of the fine structure constant in the string dilaton model proposed by Damour and Polyakov. First, we analize the dependence of all available observational and experimental data with the fine structure constant variation. Furthermore, we obtain the prediction of the time variation of the fine structure constant including the renormalization group correction. Finally, we use the data set to perform a statistical analyisis. This analysis enables us to determine that the the dilaton model is in agreement with most of the data. Finally, constraints on the free parameters of this model are obtained.
23 pages, 1 figure, replaced to match published version in "New New Developments in String Theory Research" Nova Publishers Ed. Susan Grece

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

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http://salesiana.dossiersoluciones.com/handle/123456789/8285

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/astro-ph/0410030
 http://arxiv.org/abs/astro-ph/0410030

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arXiv