  The mid-rapidity transverse momentum spectra of hadrons and the available
rapidity distributions of the strange hadrons produced in p-p collisions at LHC
energy root(snn) = 0.9 TeV and root(snn)= 7.0 TeV have been studied using a
unified statistical thermal freeze-out model. The calculated results are found
to be in good agreement with the experimental data. The theoretical fits of the
transverse momentum spectra using the model calculations provide the thermal
freeze-out conditions in terms of the temperature and collective flow
parameters for different hadronic species. The study reveal the presence of
significant collective flow and a well defined temperature in the system thus
indicating the formation of a thermally equilibrated hydrodynamic system in p-p
collisions at LHC. Moreover, the fits to the available experimental rapidity
distributions data of strange hadrons show the effect of almost complete
transparency in p-p collisions at LHC. The transverse momentum distributions of
protons and Kaons produced in p-p collisions at root(snn) = 200 GeV and
root(snn)= 2.76 TeV have also been reproduced successfully. The model
incorporates longitudinal as well as a transverse hydrodynamic flow. The
contributions from heavier decay resonances have also been taken into account.
We have also imposed the criteria of exact strangeness conservation in the
system.
