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Title: Pairing properties in relativistic mean field models obtained from effective field theory
Author: Estal, Manuel del
Centelles Aixalà, Mario
Viñas Gausí, Xavier
Patra, S. K.
Keywords: Estructura nuclear
Models nuclears
Relativitat (Física)
Nuclear structure
Nuclear models
Relativity (Physics)
Issue Date: 2001
Publisher: The American Physical Society
Abstract: We apply recently developed effective field theory nuclear models in mean field approximation (parameter sets G1 and G2) to describe ground-state properties of nuclei from the valley of $\beta$-stability up to the drip lines. For faster calculations of open-shell nuclei we employ a modified BCS approach which takes into account quasi-bound levels owing to their centrifugal barrier, with a constant pairing strength. We test this simple prescription by comparing with available Hartree-plus-Bogoliubov results. Using the new effective parameter sets we then compute separation energies, density distributions and spin--orbit potentials in isotopic (isotonic) chains of nuclei with magic neutron (proton) numbers. The new forces describe the experimental systematics similarly to conventional non-linear $\sigma-\omega$ relativistic force parameters like NL3.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review C, 2001, vol. 63, núm. 4, p. 044321-1-044321-14
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ISSN: 0556-2813
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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