Particle clustering and Mott transition in nuclear matter at finite temperature (II): Self-consistent ladder Hartree-Fock approximation and model calculations for cluster abundances and the phase diagram |
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| Authors: | G Röpke M Schmidt L Münchow H Schulz |
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| Institution: | Wilhelm Pieck University, RostockGDR;Central Institute for Nuclear Research, RossendorfGDR;The Niels Bohr Institute, University of Copenhagen, Blegdamsvej 17, DK-2100 Copenhagen Ø, Denmark |
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| Abstract: | Hot nuclear matter is described in terms of a quantum statistical approach. A self-consistent ladder Hartree-Fock approximation is derived in order to achieve a simultaneous treatment of free nucleons, douterons and higher clusters. In this approximation the effect of the correlated medium on the cluster abundances is studied. The Mott mechanism is pointed out in which clusters are destructed for densities beyond the Mott density. Cluster abundances and a phase diagram are calculated by means of a model calculation based on a simplified Skyrme interaction. The role of the higher clusters in calculating the phase diagram is investigated. The possible existence of a first-order phase transition in hot nuclear matter is discussed. |
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