Perturbative QCD II: The Drell—Yan Process and the Gribov—Levin—Ryskin Equation

Abstract

Deep inelastic scattering is investigated by shooting electrons or muons at different fixed targets or by colliding them with a proton beam. From these experiments only information about nucleon structure functions can be extracted, while little is learned about the inner structure of pions, for example. There are, however, different options for high-energy collisions. Electrons can be made to collide with positrons (as is done at Stanford, DESY, and CERN), and protons can be made to collide with protons, pions, kaons, or antiprotons. The latter is done at sites such as Fermilab, where secondary beams of pions, antiprotons, etc. are created and collide with a fixed target.