Mass measurements of neutron-rich nuclei near the N=20 and 28 shell closures
JURADO, B.
Grand Accélérateur National d'Ions Lourds [GANIL]
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
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Grand Accélérateur National d'Ions Lourds [GANIL]
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
JURADO, B.
Grand Accélérateur National d'Ions Lourds [GANIL]
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
Grand Accélérateur National d'Ions Lourds [GANIL]
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
GILLIBERT, A.
Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée [DAPNIA]
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Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée [DAPNIA]
Langue
en
Article de revue
Ce document a été publié dans
Physics Letters B. 2007, vol. 649, p. 43-48
Elsevier
Résumé en anglais
Mass measurements of very neutron-rich nuclei near the N=20 and 28 shell closures are presented. Seven masses have been determined for the first time and the precision of 36 masses has been significantly improved. These ...Lire la suite >
Mass measurements of very neutron-rich nuclei near the N=20 and 28 shell closures are presented. Seven masses have been determined for the first time and the precision of 36 masses has been significantly improved. These results are used to investigate the evolution of the odd–even staggering of binding energies with neutron number. Special attention is paid to the evolution of the N=28 shell closure as the neutron dripline is approached. Changes in shell structure are observed around N=28 for the P and S isotopes but not for Si. This may be interpreted as a persistence of the shell closure at N=28 or as the result of a very sudden onset in deformation at $^{42}$Si.< Réduire
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