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arXiv · 0811.1845

Non-universal scalar-tensor theories and big bang nucleosynthesis

Alain Coc·Keith A. Olive·Jean-Philippe Uzan·Elisabeth Vangioni
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Abstract

We investigate the constraints that can be set from big-bang nucleosynthesis on two classes of models: extended quintessence and scalar-tensor theories of gravity in which the equivalence principle between standard matter and dark matter is violated. In the latter case, and for a massless dilaton with quadratic couplings, the phase space of theories is investigated. We delineate those theories where attraction toward general relativity occurs. It is shown that big-bang nucleosynthesis sets more stringent constraints than those obtained from Solar system tests.

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Alain Coc, Keith A. Olive, Jean-Philippe Uzan, Elisabeth Vangioni. 2008-11-12. Non-universal scalar-tensor theories and big bang nucleosynthesis. https://doi.org/10.1103/physrevd.79.103512

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