Nuclear shadowing

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چکیده

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TOPICAL REVIEW Nuclear shadowing

The phenomenon of shadowing of nuclear structure functions at small values of Bjorken-x is analyzed. First, multiple scattering is discussed as the underlying physical mechanism. In this context three different but related approaches are presented: Glauber-like rescatterings, Gribov inelastic shadowing and ideas based on high-density Quantum Chromodynamics. Next, different parametrizations of n...

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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...

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Longitudinal and Transverse Nuclear Shadowing

Nuclear shadowing arises from multiple scattering of the hadronic fluctuations (|qq̄〉, |qq̄g...〉) of the virtual photon in a nucleus. We predict different longitudinal and transverse shadowing and an A–dependence of R ≡ σL/σT which can be up to a 50% effect. The possibility of detecting nuclear effects on R at HERA is discussed. To be published in the Proceedings of the Workshop on “Future Physic...

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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 ...

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Nuclear Shadowing at Low Q

In the light of a recent claim that models of nuclear shadowing which incorporate a vector meson dominance component at low Q2 are incompatible with nuclear deep inelastic scattering data, we compare the predictions of such a model with high precision data on the Q2 dependence of nuclear shadowing. Contrary to this claim, we find that models which incorporate both vector meson and partonic mech...

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ژورنال

عنوان ژورنال: Journal of Physics G: Nuclear and Particle Physics

سال: 2006

ISSN: 0954-3899,1361-6471

DOI: 10.1088/0954-3899/32/11/r01