TY - INPR A1 - Gaździcki, Marek T1 - Energy scan program at the Cern SPS and an observation of the deconfinement phase transition in nucleus-nucleus collisions N2 - The history and the main results of the energy scan program at the CERN SPS are reviewed. Several anomalies in energy dependence of hadron production predicted as signals of deconfinement phase transition are observed and they indicate that the onset of deconfinement 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. Y1 - 2005 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/3856 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30-16424 UR - http://arxiv.org/abs/hep-ph/0305176 ER -