Soft dynamics of large transverse momentum processes
  We discuss the point that the processes with high transverse momenta could have a nonperturbative origin. This discussion is motivated by the fact that there are several experimental indications that such processes can originate from soft dynamics. The model combined with unitarity and impact parameter picture provides simple mechanism for the hadron production and reproduces power like dependence of the differential cross-sections in such processes at high transverse momenta and exponential behavior at small values of p_t. This model can be used for support of the argument that the soft dynamics can be responsible for large transverse momenta processes. 
S.M. Troshin