154 citations · 1.5k across the 65 of their papers we have counts for
48 papers · 1 filter
Gravitational Baryogenesis in Rainbow Gauss-Bonnet gravity
P. Goodarzi, H. Mohseni Sadjadi, R. Darabi
The gravitational baryogenesis is studied in regularized four dimensional Einstein Gauss Bonnet model with rainbow gravity corrections. This combined framework generates a non vani…
Spontaneous scalarization around a black hole in a dark matter halo
M. Navid Gasemi Zad, H. Mohseni Sadjadi
We demonstrate that in a scalar-tensor theory where dark matter is conformally coupled to a scalar field, a black hole surrounded by a Hernquist dark matter halo can undergo sponta…
Mass-Varying Dark Matter Induced Scalarization and Scalar Clouds around Black Holes
H. Mohseni Sadjadi, M. Navid Gasemi Zad
We consider a black hole solution embedded in a mass varying dark matter (DM) halo and study scalarization induced by DM. We derive the required conditions on the scalar DM couplin…
Early dark energy and scalarization in a scalar-tensor model
H. Mohseni Sadjadi
We present a model in which the Gauss-Bonnet invariant holds the quintessence at a fixed point, respecting an initial symmetry in the radiation-dominated era. This results in…
Onset of dark energy from cosmological scalarization and gravitational wave speed
H. Mohseni Sadjadi
This study investigates the emergence of dark energy during the matter-dominated era through spontaneous cosmological scalarization in the scalar-Ricci-Gauss-Bonnet model.Our model…
Scalar-Gauss-Bonnet model, the coincidence problem and the gravitational wave speed
H. Mohseni Sadjadi
We introduce a dynamical dark energy model wherein quintessence interacts with both the Gauss-Bonnet invariant and dark matter. Initially, the Gauss-Bonnet invariant stabilizes the…