arXiv subjects

Marco A. Huertas

Publications and source records attributed to Marco A. Huertas.

2 recordsLinked to original sources

arXiv2004

Extension of effective lagrangian approach to structure of selected nucle i far from stability

In a previous paper, the convergence of a new effective field theory and density functional theory (EFT/DFT) approach to the description of the nuclear many-body system was studied. The most sophisticated parameter set (here G1) determined by Furnstahl, Serot and Tang from a fit along the valley of stability was found to provide quantitative predictions for total binding energies and single-particle and single-hole binding energies, spins, and parities for selected doubly-magic nuclei far from stability. Binding energies of all the even Sn isotopes (Z=50) were also well described. Here the calculations are extended to all isotones with magic numbers N=28, 50, 82, 126, and isotopes with Z=28, 50, 82 with similar predictive results.

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arXiv2002

Effective lagrangian approach to structure of selected nuclei far from sta bility

The convergence of the effective field theory (EFT) approach of Furnstahl, Serot and Tang to the nuclear many-body problem is studied by applying it to selected doubly-magic nuclei far from stability. An independently developed code, which can incorporate various levels of approximation of the chiral effective lagrangi an, is used to solve the self-consistent relativistic Hartree equations. Results are obtained for ground-state properties such as binding energies, single-parti cle level structure, and densities of the selected spherical, doubly-magic nucle i 132-Sn, 100-Sn and 48-Ni, 78-Ni. Calculated spectra of neigh boring nuclei differing by one particle or one hole show agreement with the most recent experimental data. Predictions for nucleon densities are presented.

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