Heavy flavour production with leptons and hadrons

Abstract

The production of charm and beauty quarks in ${\hat{I}}^3{\hat{I}}^3$ collisions at LEP, $ep$ collisions at HERA and $p\bar{p}$ collisions at the Tevatron is discussed. The comparison with predictions of next-to-leading-order QCD and the issues it raises are detailed. In particular, the strengths and weaknesses of the measurements and predictions are discussed.

Invited talk at the XXIII Physics in Collisions Conference (PIC03), Zeuthen, Germany, June 2003, 14 pages, LaTeX, 10 figures. PSN SAAT05