3 papers
gr-qc2025
Emergence of running vacuum energy in gravity : Observational constraints
Ahmed Errahmani, Mounia Magrach, Safae Dahmani +2
In this work, we present a new analysis for gravity by exploring the energy momentum tensor. We demonstrate that gravity with the form is e…
gr-qc2024
Constraints on Power Law and Exponential models in Gravity
Dalale Mhamdi, Farida Bargach, Safae Dahmani +2
In this paper, we observationally test the \( f(Q) \) gravity model at both background and perturbation levels using Pantheon, Hubble measurements, and Redshift Space Distortio…
gr-qc2024
Observational constraints on the growth index parameters in gravity
Dalale Mhamdi, Safae Dahmani, Amine Bouali +2
In this study, we analyse constraints on the growth index of matter perturbations, , within the framework of gravity, using recent cosmological observations, at the backg…