Vector boson production in hadronic collisions Original Research Article

We consider the production of γ*, W and Z vector bosons in hadron-hadron collisions in perturbative QCD. We present results from a new numerical program which gives a full description of the production of the vector bosons and of their decay products. At small qT the calculation includes resummation of large logarithms and non-perturbative effects. The resummation is matched with the full O(αs) calculation. In addition, the program correctly reproduces the known O(αs) cross section when integrated over qT. Besides presenting results for W and Z production at the Tevatron, we also review constraints on the non-perturbative functions using fixed-target data on lepton pair production, and make several observations on this topic.