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Title: Superheavy nuclei in relativistic effective Lagrangian model
Author: Sil, Tapas
Patra, S. K.
Sharma, B. K.
Centelles Aixalà, Mario
Viñas Gausí, Xavier
Keywords: Estructura nuclear
Constitució de la matèria
Nuclear structure
Constitution of matter
Issue Date: 2004
Publisher: The American Physical Society
Abstract: Isotopic and isotonic chains of superheavy nuclei are analyzed to search for spherical double shell closures beyond Z=82 and N=126 within the new effective field theory model of Furnstahl, Serot, and Tang for the relativistic nuclear many-body problem. We take into account several indicators to identify the occurrence of possible shell closures, such as two-nucleon separation energies, two-nucleon shell gaps, average pairing gaps, and the shell correction energy. The effective Lagrangian model predicts N=172 and Z=120 and N=258 and Z=120 as spherical doubly magic superheavy nuclei, whereas N=184 and Z=114 show some magic character depending on the parameter set. The magicity of a particular neutron (proton) number in the analyzed mass region is found to depend on the number of protons (neutrons) present in the nucleus.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review C, 2004, vol. 69, núm. 4, p. 044315-1-044315-11
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ISSN: 0556-2813
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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