Study of spin polarized nuclear matter and finite nuclei with finite range simple effective interaction

Abstract

The properties of spin polarized pure neutron matter and symmetric nuclear matter are studied using the finite range simple effective interaction, upon its parametrization revisited. Out of the total twelve parameters involved, we now determine ten of them from nuclear matter, against the nine parameters in our earlier calculation, as required in order to have predictions in both spin polarized nuclear matter and finite nuclei in unique manner being free from uncertainty found using the earlier parametrization. The information on the effective mass splitting in polarized neutron matter of the microscopic calculations is used to constrain the one more parameter, that was earlier determined from finite nucleus, and in doing so the quality of the description of finite nuclei is not compromised. The interaction with the new set of parameters is used to study the possibilities of ferromagnetic and antiferromagnetic transitions in completely polarized symmetric nuclear matter. Emphasis is given to analyze the results analytically, as far as possible, to elucidate the role of the interaction parameters involved in the predictions.

arXiv comment31 pages, 13 figures, to appear in Journal of Physics G

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• Study of the core-crust transition in neutron stars with finite-range interactions: the dynamical method
• Correlations between charge radii differences of mirror nuclei and stellar observables
• Exact versus Taylor-expanded energy density in the study of the neutron star crust-core transition
• Deformation properties with a finite range simple effective interaction
• Influence of the nuclear matter equation of state on the r-mode instability using the finite-range simple effective interaction
• The N=50 and Z=28 shell closure revisited
• The finite range simple effective interaction including tensor terms
• Neutron star crustal properties from relativistic mean-field models and bulk parameters effects
• Equation of State of Hot Neutron Star Matter using Finite Range Simple Effective Interaction
• Analysis of critical parameters for nonrelativistic models in symmetric nuclear matter