A unified formalism to study the pseudorapidity spectra in heavy-ion collision

The pseudorapidity distribution of charged hadron over a wide $$\eta $$ range gives us crucial information about the dynamics of particle production. The constraint by the detector acceptance, particularly at forward rapidities, demands a proper distribution function to extrapolate the pseudorapidity distribution to large $$\eta $$. In this work, we have proposed a phenomenological model based on the Pearson statistical framework to study the pseudorapidity distribution. We have analyzed and fit data of charged hadrons produced in $$Pb-Pb$$ collision at 2.76 TeV and $$Xe-Xe$$ collision at 5.44 TeV using the proposed model