Testing a Dilaton Gravity Model using Nucleosynthesis

Emre Onur Kahya; Sibel Boran

Testing a Dilaton Gravity Model using Nucleosynthesis

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arxiv 1310.6145 v3 pith:XPJQ2GFD submitted 2013-10-23 astro-ph.CO gr-qchep-ph

Sibel Boran , Emre Onur Kahya This is my paper · ORCID

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keywords dilatongravitylightmodelabundanceselementslambda-cdmnucleosynthesis

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Big Bang Nucleosynthesis (BBN) offers one of the most strict evidences for the Lambda-CDM cosmology at present, as well as the Cosmic Microwave Background (CMB) radiation. In this work, our main aim is to present the outcomes of our calculations related to primordial abundances of light elements, in the context of higher dimensional steady-state universe model in the dilaton gravity. Our results show that abundances of light elements (primordial D, 3He, 4He, T, 7Li) are significantly different for some cases, and a comparison is given between a particular dilaton gravity model and Lambda-CDM in the light of the astrophysical observations.

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Constraints on R\'{e}nyi Entropy through Primordial Big-Bang Nucleosynthesis and Baryogenesis
physics.gen-ph 2025-07 reject novelty 5.0 of 10

Rényi entropy cosmology constrained by BBN: helium and deuterium allow overlapping λ ranges near 10^-85, lithium requires disjoint values, so the constant-λ model cannot solve the lithium problem.

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