Small- and large-psub(t) behaviour in hadronic inclusive processes

The case of the low and high psub(t) inclusive processes are considered to occur both at the periphery and the core of a hadron-hadron collision process independently. For the peripheral soft interaction, one obtains an exponential decay, but for the core interaction a power law fall off as psub(t)-8 is illustrated. For a photon-photon collision, similar exponential fall off and a power law fall off psub(t)-4 also occurs in agreement with experiments. (author)