Does Nucleosynthesis in a New Thermodynamic R_{H_t} = ct Cosmology Solve the Lithium Problem?

07 May 2025, Version 1
This content is an early or alternative research output and has not been peer-reviewed by Cambridge University Press at the time of posting.

Abstract

Haug [1] has recently presented a general thermodynamic Friedmann-type equation . In this thermodynamic cosmological R_H = ct model, the freeze-out time is t_f ≈ 2.024 s, and nucleosynthesis starts first after about 697.9 s. The model seems to be leading to potentially also solving the Lithium problem, as it seems to predict a Lithium-7 (7Li/H): ∼ 1.003×10−10, which corresponds to well within 2σ of the observations, while the Λ-CDM model predicts way too much Lithium-7: 7Li/H :∼ 5.0 × 10−10 that is 10σ outside the observations.

Keywords

Neutron proton ratio
ucleosynthesis
nucleons
Lithium-7
cosmo- logical problem

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