Nonuniversal scalar-tensor theories and big bang nucleosynthesis

Alain Coc, Keith A. Olive, Jean Philippe Uzan, Elisabeth Vangioni

Research output: Contribution to journalArticlepeer-review

32 Scopus citations


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.

Original languageEnglish (US)
Article number103512
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number10
StatePublished - May 1 2009


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