  The transverse momentum spectra at RHIC and LHC for A+A and p+p collisions
are studied with Tsallis distributions in different approaches i.e. with and
without radial flow. The information on the freeze-out surface in terms of
freeze-out volume, temperature, chemical potential and radial flow velocities
for different particle species are obtained. These parameters are found to show
a systematic behavior with mass dependence. It is observed that the heavier
particles freeze-out early as compared to lighter particles and freeze-out
surfaces are different for different particles, which is a direct signature of
mass dependent differential freeze-out. Further, we observe that the radial
flow velocity decreases with increasing mass. This confirms the mass ordering
behavior in collectivity observed in heavy-ion collisions. It is also observed
that the systems created in peripheral heavy-ion collisions and in
proton-proton collisions are of similar thermodynamic nature.
