  The experimental data from the RHIC and LHC experiments of invariant pT
spectra in A+A and p + p collisions are analysed with Tsallis distributions in
different approaches. The information about the freeze-out surface in terms of
freeze-out volume, temperature, chemical potential and radial flow velocity for
different particle species are obtained. Further, these parameters are studied
as a function of the mass of the secondary particles. A mass-dependent
differential freeze-out is observed which does not seem to distinguish between
particles and their antiparticles. Further a mass-hierarchy in the radial flow
is observed, meaning heavier particles suffer lower radial flow. Tsallis
distribution function at finite chemical potential is used to study the mass
dependence of chemical potential. The peripheral heavy-ion and proton-proton
collisions at the same energies seem to be equivalent in terms of the extracted
thermodynamic parameters.
