S.P. Potential And Symmetry Potential For ANM Within EBHF With TBF

Non-relativistic Brueckner-Hartree-Fock (BHF) method is a branch of microscopic nuclear many-body theory. It bases on the BBG scheme, which expands the interaction of two nucleons in nuclear medium into converging series. With realistic two-body nuclear force as initial input quantity, the BHF approach solves iteratively the two-body correlation equation, i.e. the B-G equation. In the past several decades, the BHF theory had been extended as EBHF approach. On the other hand, the microscopic three-body effect is introduced into the EBHF theory by reducing it into an equivalent density-depending two-body force. The introducing of TBF improves greatly the prediction for nuclear matter property at saturation point.Within the EBHF theory, with considering the groundstate correlation and with considering the two folds contribution from TBF to single particle potential, i.e. TBF modification to G-matrix and TBF-induced rearrangement, we study in the present thesis the nucleon s.p. potential and the symmetry potential with different isospin asymmetry degree and different densities.With studying on symmetry potential, we find that ground state correlation makes an obvious peak emerges on symmetry potential curve near Fermi momentum, and that groundstate correlation breaks the beta-independency of symmetry potential.With studying on s.p. potential, we find that below the saturation point, the s.p. potential decreases as a function of momentum under Fermi face, and that at saturation density, s.p. potential is almost momentum-independent under Fermi face.