On the precise determination of the Tsallis parameters in proton-proton collisions at LHC energies

A detailed analysis is presented of the precise values of the Tsallis parameters obtained in p-p collisions for identified particles, pions, kaons and protons at the LHC at three beam energies root s = 0.9, 2.76 and 7 TeV. Interpolated data at root s = 5.02 TeV have also been included. It is shown that the Tsallis formula provides reasonably good fits to the p(T) distributions in p-p collisions at the LHC using three parameters dN/dy, T and q. However, the parameters T and q depend on the particle species and are different for pions, kaons and protons. As a consequence there is no m(T) scaling and also no universality of the parameters for different particle species.