2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/81268The most significant experimental results on hard processes in heavy-ion collisions at RHIC collider energies are reviewed. Emphasis is put on measurements that provide insights on strongly interacting media like the ``Quark Gluon Plasma'' and the ``Color Glass Condensate''.Invited overview talk to appear in the Proceedings of the 39th Rencontres de Moriond on QCD and High-Energy Hadronic Interactions, La Thuile, Vallee d'Aoste, 28 Mar - 4 Apr 2004Nuclear ExperimentHigh Energy Physics - Experimenttext