2002/02/11 by T. Falter, U. Mosel
Physics and Astronomy · #nucl-th #hep-ph
published as Proceedings of the XL International Winter Meeting on Nuclear Physics, Bormio, 2002, edited by I. Iori and A. Moroni (University of Milano, Italy, 2002), p. 289 · 10 pages, 6 figures, Proceedings of XL International Winter Meeting on Nuclear Physics, Bormio, Italy, Jan. 2002; corrected typos
arxiv created 2002/02/11 · arxiv updated 2009/11/30
We present a way to account for coherence length effects in a semi-classical transport model. This allows us to describe photo- and electroproduction at large nuclei (A>12) and high energies using a realistic coupled channel description of the final state interactions that goes far beyond simple Glauber theory. We show that the purely absorptive treatment of the final state interactions as usually done in simple Glauber theory might lead to wrong estimates of color transparency and formation time effects in particle production. As an example we discuss exclusive rho0 photoproduction on Pb at a photon energy of 7 GeV as well as K+ and K- production on C and Pb in the photon energy range 1-7 GeV.