Heavy-quark production as a sensitive test for an improved description of high-energy hadron collisions - art. no. 071502

QCD dynamics at small quark and gluon momentum fractions or large total ene rgy, which plays a major role for DESY HERA, the Fermilab Tevatron, BNL RHI C and CERN LHC physics, is still poorly understood. For one of the simplest processes, namely b (b) over bar production, next-to-leading-order perturb ation theory fails. We show that the combination of two recently developed theoretical concepts, the k(perpendicular to) factorization and the next-to -leading-logarithmic-approximation Balitskii-Fadin-Kuraev-Lipatov vertex, g ives perfect agreement with data. One can therefore hope that these concept s provide a valuable foundation for the description of other high energy pr ocesses.