Title: Studies of heavy-ion collisions with a two-component model.
Abstract: Charged particles production in heavy-ions collisions is considered in this paper in terms of a recently introduced Two Component Model.The variations of the parameters of the introduced approach with the center of mass energy and centrality are studied using the available data from RHIC and LHC experiments.The spectra shapes are found to show an universal dependence on the number of participating nucleons N part for all investigated collision energies.Next, the dependences of the obtained charged hadron densities on the N part are discussed.The Two Component Model allows to separate the charged hadron densities originating from two distinct mechanisms of hadroproduction.Scaling of "soft" and "hard" contributions to the spectra with centrality is discussed.