J/psi photo- and electroproduction, the saturation scale and the gluon structure function

Kuroda M, Schildknecht D. J/psi photo- and electroproduction, the saturation scale and the gluon structure function. PHYSICS LETTERS B. 2006;638(5-6):473-479.Our approach to low-x deep inelastic scattering based on the (l) over right arrow (perpendicular to) factorization of perturbative QCD (the color-dipole picture) yields parameter-free absolute predictions for J/psi production. The connection of J/psi production to the low-x saturation scale and to the gluon structure function is clarified. (c) 2006 Elsevier B.V. All rights reserved