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• W1566144482 endingPage "224" @default.
• W1566144482 startingPage "202" @default.
• W1566144482 abstract "The binding energy and the magnetic susceptibility of neutron matter is calculated by means of Brueckner theory. A modified Brueckner-Gammel method is used to solve the BetheGoldstone equation, calculate the reaction matrix or G-matrix, and obtain the interaction energy contribution from two-body correlations. For simplicity, the approximation of a reference energy spectrum with an effective mass and quadratic momentum dependence is used for the input energy spectrum, which in principle should be fitted to self-consistent single-particle energies. The intermediate-state potential energies are, however, chosen to be equal to zero. Hence, the three-body and possibly higher-order energy contributions should be estimated by separate calculations. The Bethe-Goldstone equation is solved numerically by iteration to give the perturbed two-body wave functions. Afterwards, the G-matrix elements are calculated by numerical integration. The binding energy is calculated as a function of the Fermi momentum and the pure neutron-matter system seems to be unbound at any density, even at very low densities. In addition to the binding energy, also the magnetic susceptibility is estimated. To this end, the spin symmetry energy is calculated in terms of the derivatives of the G-matrix with respect to the Fermi momentum. A ferromagnetic transition is found to occur at a density much higher than the typical nuclear-matter density. Our method is, however, probably too simple to be reliable at such a high density." @default.
• W1566144482 created "2016-06-24" @default.
• W1566144482 creator A5050733966 @default.
• W1566144482 date "1970-09-01" @default.
• W1566144482 modified "2023-10-16" @default.
• W1566144482 title "Neutron matter" @default.
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• W1566144482 doi "https://doi.org/10.1016/0375-9474(70)91080-8" @default.
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