Transverse Momentum Distribution of Identified Hadrons in Pb-Pb Collisions at {formula} = 2.76 TeV Within Multiple Freeze-Out Scenario

摘要

We discuss the production of identified hadron in heavy ion collisions within a multiple freeze-out scenario. Thermal parameters extracted from the fits to the observed hadron yields are used to predict the transverse momentum spectra of identified hadrons. At the LHC energy of {formula} = 2.76 TeV, multiple freeze-out scenario within a unified model for chemical and kinetic freeze-out provides a consistent framework to describe the transverse momentum spectra of identified hadrons. We find that the data is better described within 2FO scenario as compared to the 1FO with a reduction in x~2/N_(df) around 40 %.