Dynamically generated parton distributions for high energy collisions

Abstract

The parton distributions of the nucleon are evaluated dynamically using the assumption that at some low resolution scale the nucleon consists entirely of valence quarks. A simple parametrization of the resulting gluon distribution is presented, for x 10^-5 up to Q ²10⁶ GeV². This gluon distribution is predicted dicted to be much steeper and larger in the very small x region (x<10^-2) than usually assumed. Applications to deep inelastic scaling violations and heavy quark (c, b, t) contribution are discussed and presented as well as hadronic heavy quark production at SSC/LHC energies. For example, the bb^- production rate at 40 TeV is predicted to be about an order of magnitude larger than that estimated with other gluon distributions so far.