1996/12/02 by J. Bartels, M. G. Ryskin
Physics and Astronomy · #hep-ph
published as Z.Phys. C76 (1997) 241-255 · 36 pages, latex, 15 figures included using epsfig
arxiv created 1996/12/02 · arxiv updated 2009/11/30
We discuss the space-time picture of scattering amplitudes with single and double ladder exchange in perturbative QCD. Particular emphasis is given to the Abramovsky Gribov Kanchelli (AGK) rules which describe the relative contributions of the diffractive dissociation and processes with other multiplicities to the elastic scattering amplitude. Inside the Pomeron Pomeron interaction vertices we find a new matrix which describes the transition from one s-cut to another and which goes beyond the original the AGK rules.