2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/129446Recent results from the HARP experiment on the measurements of the double-differential production cross-section of pions in proton interactions with beryllium, carbon and tantalum targets are presented. These results are relevant for a detailed understanding of neutrino flux in accelerator neutrino experiments MiniBooNE/SciBooNE, for a better prediction of atmospheric neutrino fluxes as well as for an optimization of a future neutrino factory design.Presented at the XLIInd Rencontres de Moriond on Electroweak Interactions and Unified TheoriesHigh Energy Physics - Experimenttext