TY - JOUR A1 - Theis, Jürgen A1 - Graebner, Gerhard A1 - Buchwald, Gerd A1 - Maruhn, Joachim A1 - Greiner, Walter A1 - Stöcker, Horst A1 - Polónyi, János T1 - Phase transition of the nucleon-antinucleon plasma in a relativistic mean-field theory T2 - Physical review D N2 - Studying Walecka's mean-field theory we find that one can reproduce the observed binding energy and density of nuclear matter within experimental precision in an area characterized by a line in the coupling-constant plane. A part of this line defines systems which exhibit a phase transition around Tc~200 MeV for zero baryon density. The rest corresponds to such systems where the phase transition is absent; in that case a peak appears in the specific heat around T~200 MeV. We interpret these results as indicating that the hadron phase of nuclear matter alone indicates the occurrence of an abrupt change in the bulk properties around ρV~0 and T~200 MeV. Y1 - 2006 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/2640 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30-27611 UR - http://link.aps.org/abstract/PRD/v28/p2286 VL - 28 IS - 9 SP - 2286 EP - 2290 ER -