2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/37693We report results on $ψ'$ production as a function of centrality as measured by experiment NA50, at the CERN/SPS, in Pb-Pb collisions at an incident energy of 158 GeV per nucleon.4 pages, 6 figures, contributed paper to the XXXIXth Rencontres de Moriond (QCD and High Energy Hadronic Interactions), La Thuile (Italy), Mar.28-Apr.4,2004High Energy Physics - Experimenttext