Violation of kT factorization in quark production from the Color Glass   Condensate
  We examine the violation of the kT factorization approximation for quark production in high energy proton-nucleus collisions. We comment on its implications for the open charm and quarkonium production in collider experiments. 
H. Fujii (Tokyo U., Komaba), F. Gelis (Saclay), R. Venugopalan   (Brookhaven)