Abstract:
In this paper, we propose a new parametrization
of dark energy based on the Om(z) diagnostic tool behavior. For this purpose, we investigate a functional form of
the Om(z) that predicts the popular dark energy dynamical
models, namely phantom and quintessence. We also found
the famous cosmological constant for specified values of the
model’s parameters. We employed the Markov Chain Monte
Carlo approach to constrain the cosmological model using
Hubble, Pantheon samples, and BAO datasets. Finally, we
used observational constraints to investigate the characteristics of dark energy evolution and compare our findings to
cosmological predictions.
