#radiation era

topicradiation era

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gr-qc2026

Gravitational Baryogenesis in Rainbow Gauss-Bonnet gravity

P. Goodarzi, H. Mohseni Sadjadi, R. Darabi

The paper investigates how combining rainbow gravity with a four‑dimensional Einstein–Gauss–Bonnet model can generate a non‑zero time derivative of the Ricci scalar during the radi…