Multiple Scattering Theory for the Photoproduction of Vector Mesons off Nuclei

Abstract

The integrated cross section for the incoherent photoproduction of vector mesons on nuclei ${\gamma }^{\ast }A\to VX$, $X\ne A$, is calculated within Glauber theory and as a function of the photon energy. The inverse of the longitudinal momentum transfer is called coherence length $l_c$ and depends on the virtuality and the energy of the photon. Nuclear transmission factors strongly depend on $l_c/R_A$ ($R_A$ is the nuclear radius) and this effect may interfere with the search for color transparency effects.

9 pages, 1 Postscript figure

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