Transverse momentum distributions of identified particles produced in p-Pb collisions at √S_NN = 5.02 TeV

The statistical and hydrodynamic models predicted the existence of a hot and dense matter produced in the initial stage, which rapidly expands and cools down, ultimately undergoing a transition to a hadron gas phase. A collective hydrodynamic flow developed from the initially generated pressure gradients results in a characteristic dependence of the shape of the transverse momentum (p_T) distribution on the particle mass, which can be described with a kinetic freeze-out temperature T and a collective expansion velocity β_T. The interpretation of heavy-ion results depends crucially on the comparison with results from smaller collision systems such as proton-proton (pp) or proton-nucleus (pA). Comparing particle production in pp, pA, and AA reactions has frequently been used to separate initial state effects from the final state effects. In this analysis, we have reproduced the mid-rapidity (0T- distributions of some particles produced in p-Pb collisions at LHC by employing our earlier proposed Unified Statistical Thermal Freeze-out Model (USTFM) which incorporates the effects of both longitudinal as well as transverse hydrodynamic flow in the produced system. The various freeze-out conditions so obtained are studied and compared to those obtained from heavy ion collisions at RHIC and LHC