Nuclear masses, deformations and shell effects

We show that the Liquid Drop Model is best suited to describe the masses of prolate deformed nuclei than of spherical nuclei. To this end three Liquid Drop Mass formulas are employed to describe nuclear masses of eight sets of nuclei with similar quadrupole deformations. It is shown that they are ab...

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Detalles Bibliográficos
Autores principales: Hirsch, Jorge G, Barbero, César Alberto, Mariano, Alejandro Edgardo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2011
Materias:
Ciencias Exactas
Física
Liquid Drop Model
Nuclear masses
symmetry
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/128639
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-128639
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Liquid Drop Model
Nuclear masses
symmetry
spellingShingle Ciencias Exactas
Física
Liquid Drop Model
Nuclear masses
symmetry
Hirsch, Jorge G
Barbero, César Alberto
Mariano, Alejandro Edgardo
Nuclear masses, deformations and shell effects
topic_facet Ciencias Exactas
Física
Liquid Drop Model
Nuclear masses
symmetry
description We show that the Liquid Drop Model is best suited to describe the masses of prolate deformed nuclei than of spherical nuclei. To this end three Liquid Drop Mass formulas are employed to describe nuclear masses of eight sets of nuclei with similar quadrupole deformations. It is shown that they are able to fit the measured masses of prolate deformed nuclei with an RMS smaller than 750 keV, while for the spherical nuclei the RMS is, in the three cases, larger than 2000 keV. The RMS of the best fit of the masses of semi-magic nuclei is also larger than 2000 keV. The parameters of the three models are studied, showing that the surface symmetry term is the one which varies the most from one group of nuclei to another. In one model, isospin dependent terms are also found to exhibit strong changes. The inclusion of shell effects allows for better fits, which continue to be better in the prolate deformed nuclei region.
format Articulo
Articulo
author Hirsch, Jorge G
Barbero, César Alberto
Mariano, Alejandro Edgardo
author_facet Hirsch, Jorge G
Barbero, César Alberto
Mariano, Alejandro Edgardo
author_sort Hirsch, Jorge G
title Nuclear masses, deformations and shell effects
title_short Nuclear masses, deformations and shell effects
title_full Nuclear masses, deformations and shell effects
title_fullStr Nuclear masses, deformations and shell effects
title_full_unstemmed Nuclear masses, deformations and shell effects
title_sort nuclear masses, deformations and shell effects
publishDate 2011
url http://sedici.unlp.edu.ar/handle/10915/128639
work_keys_str_mv AT hirschjorgeg nuclearmassesdeformationsandshelleffects
AT barberocesaralberto nuclearmassesdeformationsandshelleffects
AT marianoalejandroedgardo nuclearmassesdeformationsandshelleffects
bdutipo_str Repositorios
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