Gogota O. Production of c and b quarks in ppbar collisions at the Tevatron collider at sqrt{s}=1.96 TeV

The results of the measurements of c and b quarks productions in proton-antiproton collisions at the D0 experiment at the Tevatron are presented.Measurements have been done in 2 aspects: measurement of the W +b-jet and W +c-jet differential production cross sections and a measurement of the fiducial cross sections of quarkonium productions of c or b quark. Thesis presents measurements of the fiducial cross sections of J/psi mesons production, simultaneous production of two J/psi mesons, simultaneous production of J/psi and Y mesons in the muon decay channel. The parameter of multiparton scatterings,sigma_{eff}, was extracted.