Work

Paper10_S8 tension under B framework

Year: 2026

Type: article

Abstract: The S8 tension is a late-time structure problem: baseline CMB fits in ΛCDM prefer asomewhat larger clustering amplitude than several low-redshift weak-lensing and large-scale-structure analyses. This paper develops a formal route by which the α–β–ϕ framework can movethe late-time clustering amplitude downward while remaining connected to the same visibleaction used in the broader program. Starting from the visible Lagrangian, the action is variedstep by step to obtain modified Einstein equations and, after homogeneous reduction, modifiedFriedmann equations. The same non-minimal coupling F (ϕ)R then yields a background effectivegravitational response and motivates a controlled perturbative completion for the growth sector.The quantity

Source: Zenodo (CERN European Organization for Nuclear Research)

DOI: 10.5281/zenodo.19563878

Author: Douglas, Hernandez

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W7154230707

FWCI:

Cites:

Cited by:

Related to: