An analytic parametrization of the hyperonic matter equation of state

Details An analytic parametrization of the hyperonic matter equation of state An analytic parametrization of the hyperonic matter equation of state

2010-04-22

arxiv.org/abs/1004.3958v1

Physics

Nuclear Physics

Nuclear Theory

10 pages, 4 figures, 3 tables

Scientific paper

An analytic parametrization of the hyperonic matter equation of state based on microscopic Brueckner-Hartree-Fock calculations has been constructed using the realistic Argonne V18 nucleon-nucleon potential plus a three-body force of Urbana type, and three models of the hyperon-nucleon interaction: the Nijmegen soft-core models NSC89 and NSC97e, and the most recent meson-exchange potential of the Juelich group. The construction of this parametrization is based on a simple phase-space analysis and reproduces with good accuracy the results of the microscopic calculations with a small number of parameters. This parametrization allows for rapid calculations that accurately mimic the microscopic results, being therefore, very useful from a practical point of view.

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