Nuclear shadowing in the light-cone dipole approach

Details Nuclear shadowing in the light-cone dipole approach Nuclear shadowing in the light-cone dipole approach

2008-03-12

arxiv.org/abs/0803.1744v1

PoSLHC07:028,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 5 figures, talk given at the Workshop on High-pT Physics at LHC (LHC07), Jyvaskyla, Finland, 23-27 Mar 2007. Publish

Scientific paper

We study nuclear shadowing at small Bjorken x < 0.01 in the color dipole approach. Such a light-cone quantum-chromodynamics formalism based on the Green function technique incorporates naturally color transparency and coherence length effects. The nuclear shadowing for the barq-q Fock component of the photon is calculated using exact numerical solution of the evolution equation for the Green function. At x < 0.01 we demonstrate that a contribution of higher Fock states containing gluons to overall nuclear shadowing becomes effective. Numerical results for nuclear shadowing are compared with available data from the E665 and NMC collaborations. Model calculations are finally tested with the results obtained from other models.

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