Reconstruction of interaction rate in Holographic dark energy model with
  Hubble horizon as the infrared cut-off
  This work is the reconstruction of the interaction rate of holographic dark
energy whose infrared cut-off scale is set by the Hubble length. We have
reconstructed the interaction rate between dark matter and the holographic dark
energy for a specific parameterization of the effective equation of state
parameter. We have obtained observational constraints on the model parameters
using the latest Type Ia Supernova (SNIa), Baryon Acoustic Oscillations (BAO)
and Cosmic Microwave Background (CMB) radiation datasets. We have found that
for the present model, the interaction rate increases with expansion and
remains positive throughout the evolution. For a comprehensive analysis, we
have also compared the reconstructed results of the interaction rate with other
well-known holographic dark energy models. The nature of the deceleration
parameter, the statefinder parameters and the dark energy equation of state
parameter have also been studied for the present model. It has been found that
the deceleration parameter favors the past decelerated and recent accelerated
expansion phase of the universe. It has also been found that the dark energy
equation of state parameter shows a phantom nature at the present epoch.
