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- W2953250025 abstract "Brueckner-Hartree-Fock theory allows to derive the $G$-matrix as an effective interaction between nucleons in the nuclear medium. It depends on the center of mass momentum $bm{P}$ of the two particles and on the two relative momenta $bm{q}$ and $bm{q'}$ before and after the scattering process. In the evaluation of the total energy per particle in nuclear matter usually the angle averaged center of mass momentum approximation has been used. We derive in detail the exact expressions of the angular integrations of the momentum $bm{P}$ within relativistic Brueckner-Hartree-Fock (RBHF) theory, especially for the case of asymmetric nuclear matter. In order to assess the reliability of the conventional average momentum approximation for the binding energy, the saturation properties of symmetric and asymmetric nuclear matter are systematically investigated based on the realistic Bonn nucleon-nucleon potential. It is found that the exact treatment of the center of mass momentum leads to non-negligible contributions to the higher order physical quantities. The correlation between the symmetry energy $E_{mathrm{sym}}$, the slope parameter $L$, and the curvature $K_{mathrm{sym}}$ of the symmetry energy are investigated. The results of our RBHF calculations for the bulk parameters characterizing the equation of state are compared with recent constraints extracted from giant monopole resonance and isospin diffusion experiments." @default.
- W2953250025 created "2019-06-27" @default.
- W2953250025 creator A5022877821 @default.
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- W2953250025 creator A5079440871 @default.
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- W2953250025 date "2018-11-05" @default.
- W2953250025 modified "2023-10-14" @default.
- W2953250025 title "Relativistic Brueckner-Hartree-Fock theory in nuclear matter without the average momentum approximation" @default.
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- W2953250025 doi "https://doi.org/10.1103/physrevc.98.054302" @default.
- W2953250025 hasPublicationYear "2018" @default.
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