Quantitative study of the violation of kperpendicular factorization in hadroproduction of quarks at collider energies.

@article{Fujii2005QuantitativeSO,
  title={Quantitative study of the violation of kperpendicular factorization in hadroproduction of quarks at collider energies.},
  author={Hirotsugu Fujii and François Gelis and Raju Venugopalan},
  journal={Physical review letters},
  year={2005},
  volume={95 16},
  pages={
          162002
        }
}
We demonstrate the violation of kperpendicular factorization for quark production in high energy hadronic collisions. This violation is quantified in the color glass condensate framework and studied as a function of the quark mass, the quark transverse momentum, and the saturation scale Q(s), which is a measure of large parton densities. At x values where parton densities are large but leading twist shadowing effects are still small, violations of kperpendicularkfactorization can be significant… 

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