Baryonic Density and Scalar-Tensor Gravity Theories

Mathematics – Logic

Scientific paper

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Cosmology, Gravitation Theory, Nuclear Reactions, Light Elements, Abundance, Weak Interactions (Field Theory)

Scientific paper

We have studied homogeneous and isotropic cosmological models and the primordial light element production in scalar-tensor gravity theories. We show that a wide class of them allows for a baryonic density very close to that needed for the universe closure. This class of theories converges soon enough towards General Relativity and, hence, is compatible with all solar-system and binary pulsar gravitational tests. These theories have also important consequences on inflation and on formation of large-scale structures
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