A Late-Time Growth-Only Modification of Gravity with CMB-Lensing Consistency
Abstract
This version consolidates the final growth-only μ(a) implementation and its numerical validation.The ΛCDM background expansion remains fixed, with all modifications confined to the matter growth sector via a single, well-defined insertion point in the Newtonian-gauge Einstein–Poisson equation. Minor clarifications and consistency checks have been applied.All core results, figures, and conclusions remain unchanged with respect to the previous version.
Fields of Study & Subjects
Cosmology and Gravitation Theories
Black Holes and Theoretical Physics
Particle physics theoretical and experimental studies
Publication details
- Journal / source
- Zenodo (CERN European Organization for Nuclear Research)
- Publication date
- 6 January 2026
- Language
- EN
- Document type
- Preprint