2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/81141In the PHENIX experiment at RHIC, the electro-magnetic calorimeter plays an important role in both the heavy-ion and spin physics programs for which it was designed. In order to measure its performance in the energy range up to 80GeV, a beam test was performed at the CERN-SPS H6 beam line. We describe the beam test and present results on calorimeter performance with pion and electron beams.12 pages, 6 figures, 1 table, submitted to Nucl. Instr. and Meth. ANuclear ExperimentHigh Energy Physics - Experimenttext