Nuclear shadowing and ρ photoproduction

Nuclear Shadowing and Rho Photoproduction

Rho photoproduction on complex nuclei is re-examined using a generalised vector dominance model which succesfully predicts the oberved nuclear shadowing in real photoabsorption and deep inelastic scattering. This model is shown to give a good fit to rho photoproduction data on both nucleons and complex nuclei, in which the disagreement between the measured γ − ρ coupling and the γ − ρ coupling ...

Nuclear Shadowing and In-medium Properties of the Ρ

We explain the early onset of shadowing in nuclear photoabsorption within a multiple scattering approach and discuss its relation to in-medium modifications of the ρ 0. The nuclear photoabsorption cross section is known to be shadowed at large energies, i.e. σ γA < Aσ γN. This was at first interpreted as a confirmation of the vector meson dominance (VMD) model, which assumes that the photon mig...

Subthreshold Ρ 0 Photoproduction

PHOTOPRODUCTION OFF NUCLEI AND POINT-LIKE PHOTON INTERACTIONS Part I: Cross Sections and Nuclear Shadowing

High energy photoproduction off nuclear targets is studied within the Glauber-Gribov approximation. The photon is assumed to interact as a qq̄-system according to the Generalized Vector Dominance Model and as a “bare photon” in direct scattering processes with target nucleons. We calculate total cross sections for interactions of photons with nuclei taking into account coherence length effects a...

Binding effects and nuclear shadowing

The effects of nuclear binding on nuclear structure functions have so far been studied mainly at fixed target experiments, and there is currently much interest in obtaining a clearer understanding of this phenomenon. We use an existing dynamical model of nuclear structure functions, that gives good agreement with current data, to study this effect in a kinematical regime (low x, high Q) that ca...