Perspective on Tsallis statistics for nuclear and particle physics

This is a concise introduction to the topic of nonextensive Tsallis statistics meant especially for those interested in its relation high energy proton-proton, proton-nucleus, and nucleus-nucleus collisions. The three types are reviewed. Only one them consistent with fundamental hypothesis equilibrium statistical mechanics. single particle distributions associated it, namely Boltzmann, Fermi-Dirac, Bose-Einstein, derived. These not solutions conventional Boltzmann transport equation which must be modified rather nonintuitive manner so. Nevertheless limit distribution extremely efficient representing wide variety collisions only parameters, being so-called nonextensitivity parameter $q$. interpolates between an exponential at low transverse energy, reflecting thermal equilibrium, power law asymptotic freedom QCD. It should viewed as new behavior these