Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2003-01-24
Acta Phys.Polon. B34 (2003) 4269-4292
Physics
Nuclear Physics
Nuclear Theory
two column, revtex format, 9 eps figures, correction on footnote 30
Scientific paper
In a previous paper, the convergence of the effective field theory approach of Furnstahl, Serot and Tang to the nuclear many-body problem was studied by applying it to selected doubly-magic, and neighboring single-particle and single-hole, nuclei far from stability. The success of that approach, interpreted through density functional theory, would imply reliable densities. In this paper, the single-particle (Kohn-Sham) wave functions are probed using weak transitions near the Fermi surface. The weak currents are the Noether currents derived from the effective Lagrangian. The general single-particle transition matrix elements, from which any semi-leptonic weak rate can be calculated, are obtained in terms of upper and lower components of the Dirac wave functions. Here beta-decays in nuclei neighboring 132-Sn are studied and compared with available experimental data. Calibration of the theoretical results for such decays may also have useful application in element formation.
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