#growth of structure

Growth, geometry, and early-universe split of the matter density parameter $\hat{I}{\text{c◯}}_{\mathrm{m}}$

Felicitas Keil, Isaac Tutusaus, Alain Blanchard

The paper separates the present‑day matter density parameter Ωₘ into geometric, growth, and early‑universe contributions using DES, Planck, DESI BAO, Pantheon+ supernovae, and RSD…