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

Abstract

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.

arXiv comment12 pages, 15 EPS figures + 1 PS figure. Prepared using REVTex 4.0 and packages graphicx, dcoulumn

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• Two-loop Corrections for Nuclear Matter in a Covariant Effective Field Theory
• Loop Corrections and Naturalness in a Chiral Effective Field Theory
• Building Atomic Nuclei with the Dirac Equation
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• A Field-Theoretic Parametrization of Low-Energy Nucleon Form Factors
• Three-loop Corrections in a Covariant Effective Field Theory
• Standard Model Masses and Models of Nuclei