1999/04/29 by Yu. M. Shabelski, Shabelski, Yu. M.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9904492
10 pages, LaTeX, 6 figures, epsfig.sty. Talk, given at HERA Monte Carlo Workshop, 27-30 April 1998, DESY, Hamburg
arxiv created 1999/04/29 · arxiv updated 2009/11/30
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.