Superheavy nuclei in relativistic effective Lagrangian model


Autoria(s): Sil, Tapas; Patra, S. K.; Centelles Aixalà, Mario; Viñas Gausí, Xavier; Sharma, B. K.
Data(s)

29/01/2010

29/01/2010

2004

Resumo

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.

Formato

11 p.

application/pdf

Identificador

0556-2813

http://hdl.handle.net/2445/11006

515755

Idioma(s)

eng

Publicador

The American Physical Society

Relação

Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevC.69.044315

Physical Review C, 2004, vol. 69, núm. 4, p. 044315-1-044315-11

Direitos

(c) The American Physical Society, 2004

info:eu-repo/semantics/openAccess

Palavras-Chave #Estructura nuclear #Constitució de la matèria #Nuclear structure #Constitution of matter
Tipo

info:eu-repo/semantics/article