Nuclear shadowing
Apr, 2006Citations per year
Abstract: (arXiv)
The phenomenon of shadowing of nuclear structure functions at small values of Bjorken- 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 nuclear partonic distributions based on fit analysis to existing data combined with Dokshitzer-Gribov-Lipatov-Altarelli-Parisi evolution, are reviewed. Finally, a comparison of the different approaches is shown, and a few phenomenological consequences of nuclear shadowing in high-energy nuclear collisions are presented.Note:
- 33 pages, LaTeX, uses iopart and iopams styles; 22 eps figures included using graphicx. v2: comments and references added, results and conclusions unchanged, final version
- review
- lepton nucleus: deep inelastic scattering
- photon nucleus: nuclear reaction
- nucleus: structure function
- small-x
- shadowing
- multiple scattering
- model: Glauber
- diffraction: dissociation
- quantum chromodynamics
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