2 papers
astro-ph.CO2026
Implications of a high growth index on the variation of
Ãcaro. B. S. Cortês, Léo. G. Medeiros, Ronaldo C. Batista
A recent determination of the growth index indicates a value significantly higher than the CDM prediction, suggesting that alternative scenarios to CDM may be required. In…
astro-ph.CO2025
Can dark energy explain a high growth index?
Ãcaro B. S. Cortês, Ronaldo C. Batista
A promising way to test the physics of the accelerated expansion of the Universe is by studying the growth rate of matter fluctuations, which can be parametrized by the matter ener…