The centrality dependence of pseudorapidity density of charged particles and
transverse energy is studied for a wide range of collision energies for
heavy-ion collisions at midrapidity from 7.7 GeV to 5.02 TeV. A two-component
model approach has been adopted to quantify the soft and hard components of
particle production, coming from nucleon participants and binary
nucleon-nucleon collisions, respectively. Within experimental uncertainties,
the hard component contributing to the particle production has been found not
to show any clear collision energy dependence from RHIC to LHC. The effect of
centrality and collision energy in particle production seem to factor out with
some degree of dependency on the collision species. The collision of
Uranium-like deformed nuclei opens up new challenges in understanding the
energy-centrality factorization, which is evident from the centrality
dependence of transverse energy density, when compared to collision of
symmetric nuclei.Comment: Published version in Eur. Phys. J.
