Open Charm and Beauty Production at HERA

A review is provided of open charm and beauty production at HERA and its description by perturbative QCD (pQCD). Four years after the end of the data taking there is still a steady flow of new charm and beauty results from HERA. Among the results reported here are the first combined H1 and ZEUS measurements on the contribution from charm production to deep inelastic scattering (DIS), represented by the structure function , as well as new precise results on the corresponding structure function for beauty production, . Furthermore the situation of charm and beauty production in the photoproduction kinematic regime is reviewed. Since it is a related field also the first hadroproduction results from LHC are presented. A brief outlook is given on open heavy flavour prospects at possible future ep colliders, with a focus on the LHeC.