2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/37596The phenomenology of b-production and some of the previous Run I measurements of CDF and D0 are briefly reviewed. A new analysis by CDF of Run I b-bbar angular correlations and a new measurement by D0 of Run II b-jet cross-section, are presented.High Energy Physics - Experimenttext