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Nonuniversal scalar-tensor theories and big bang nucleosynthesis

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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http://hal.in2p3.fr/in2p3-00575627
Contributor : Christine Hadrossek <>
Submitted on : Friday, March 11, 2011 - 3:02:21 PM
Last modification on : Wednesday, September 16, 2020 - 4:17:41 PM

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A. Coc, K. A. Olive, J.-P. Uzan, E. Vangioni. Nonuniversal scalar-tensor theories and big bang nucleosynthesis. Physical Review D, American Physical Society, 2009, 79, pp.103512. ⟨10.1103/PhysRevD.79.103512⟩. ⟨in2p3-00575627⟩

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