The ALICE Collaboration measured dielectron production as a function of the
invariant mass (mee​), the pair transverse momentum (pT,ee​)
and the pair distance of closest approach (DCAee​) in pp collisions at
s​=7 TeV. Prompt and non-prompt dielectron sources can be separated
with the DCAee​, which will give the opportunity in heavy-ion
collisions to identify thermal radiation from the medium in the
intermediate-mass range dominated by contributions from open-charm and beauty
hadron decays. The charm and beauty total cross sections are extracted from the
data by fitting the spectra with two different MC generators, i.e. PYTHIA a
leading order event generator and POWHEG a next-to-leading order event
generator. Significant model dependences are observed, reflecting the
sensitivity of this measurement to the heavy-flavour production mechanisms