TY - JOUR A1 - Gaździcki, Marek T1 - Observation of deconfinement phase transition in nucleus-nucleus collisions T2 - Acta Physica Polonica B N2 - The main results obtained within the energy scan program at the CERN SPS are presented. The anomalies in energy dependence of hadron production indicate that the onset of deconfinement phase transition is located at about 30 A GeV. For the first time we seem to have clear evidence for the existence of a deconfined state of matter in nature. PACS numbers: 24.85.+p Y1 - 2004 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/3769 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30-17164 UR - https://www.actaphys.uj.edu.pl/R/35/1/187/pdf VL - 35 SP - 187 EP - 190 ER -