The Role of Incident Parton Transverse Momenta in Heavy Quark Hadroproduction
arXiv:hep-ph/9904492
Abstract
The conventional NLO parton model is enough for the description of total cross sections and one-particle distributions. In the case of two-particle correlations, the collinear approximation has failed, and it is necessary to account for the transverse momenta of initial partons. The different possibilities to do this are discussed.
10 pages, LaTeX, 6 figures, epsfig.sty. Talk, given at HERA Monte Carlo Workshop, 27-30 April 1998, DESY, Hamburg