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arXiv · 0809.3325

Properties of asymmetric nuclear matter in different approaches

P. Gögelein·E. N. E. van Dalen·Kh. Gad·Kh. S. A. Hassaneen·H. Müther
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Abstract

Properties of asymmetric nuclear matter are derived from various many-body approaches. This includes phenomenological ones like the Skyrme Hartree-Fock and relativistic mean field approaches, which are adjusted to fit properties of nuclei, as well as more microscopic attempts like the Brueckner-Hartree-Fock approximation, a self-consistent Greens function method and the so-called $V_{lowk}$ approach, which are based on realistic nucleon-nucleon interactions which reproduce the nucleon-nucleon phase shifts. These microscopic approaches are supplemented by a density-dependent contact interaction to achieve the empirical saturation property of symmetric nuclear matter. The predictions of all these approaches are discussed for nuclear matter at high densities in $β$-equilibrium. Special attention is paid to behavior of the isovector component of the effective mass in neutron-rich matter.

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P. Gögelein, E. N. E. van Dalen, Kh. Gad, Kh. S. A. Hassaneen, H. Müther. 2008-09-19. Properties of asymmetric nuclear matter in different approaches. https://doi.org/10.1103/physrevc.79.024308

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