Cosmic aspects of matter creation models in modified gravities

Abstract

This paper is devoted to study some cosmological models in the scenario of two gravitational theories like fractal universe and dynamical Chern–Simons modified theory in particle creation mechanism. In both theories, we consider three particle creation rate models including constant and variable mode. We use Gibbs equation to find out pressure of particle creation rate using adiabatic matter phenomenon. The Hubble parameter along with its normalized form are constructed for each case. We discuss the deceleration parameter and effective equation of state parameter by taking into account the normalized Hubble parameter and model parameters. The results of these parameters represent consistent behavior with recent observational data.