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

  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},
  volume={95 16},
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… 

Figures from this paper

Heavy flavour production in pA collisions

Heavy-quark production in high-energy proton–nucleus (pA) collisions is described in the framework of the colour glass condensate. k⊥ factorization is broken even at leading order albeit a more

Quarkonium production in high energy proton-nucleus collisions: CGC meets NRQCD

A bstractWe study the production of heavy quarkonium states in high energy proton-nucleus collisions. Following earlier work of Blaizot, Fujii, Gelis, and Venugopalan, we systematically include both

Comparison of improved TMD and CGC frameworks in forward quark dijet production

For studying small-x gluon saturation in forward dijet production in high-energy dilute-dense collisions, the improved TMD (ITMD) factorization formula was recently proposed. In the Color Glass

Production of q anti-q pairs in proton-nucleus collisions at high energies

We calculate production of quark-antiquark pairs in high energy proton-nucleus collisions both in the quasiclassical approximation of McLerran-Venugopalan model and including quantum small-x