English

Cosmological constraints on scale-dependent cosmology

General Relativity and Quantum Cosmology 2024-05-29 v2

Abstract

This paper examines a cosmological model of scale-dependent gravity. The gravitational action is taken to be the Einstein-Hilbert term supplemented with a cosmological constant, where the couplings, GkG_k and Λk\Lambda_k, run with the energy scale kk. % Also, notice that, by construction, our formalism recovers general relativity when in the limit of constant Newton's coupling. % Two sub-models based on the scale-dependent cosmological model are confronted with recent observational data from: i) the Hubble parameter H(z)H(z), ii) distance modulus μ(z)\mu(z), and iii) baryon acoustic scale evolution as functions of redshift (BAO). % The viability of the model is discussed, obtaining the best-fit parameters and the maximum likelihood contours for these observables. Finally, a joint analysis is performed for H(z)H(z)+μ(z)\mu(z)+BAO.

Keywords

Cite

@article{arxiv.2210.11853,
  title  = {Cosmological constraints on scale-dependent cosmology},
  author = {Pedro D. Alvarez and Benjamin Koch and Cristobal Laporte and Angel Rincon},
  journal= {arXiv preprint arXiv:2210.11853},
  year   = {2024}
}

Comments

18 pages, 12 figures, accepted for publication in Physics of the Dark Universe

R2 v1 2026-06-28T04:09:59.922Z