The two-proton shell gap in Sn isotopes

Details The two-proton shell gap in Sn isotopes The two-proton shell gap in Sn isotopes

2004-08-11

arxiv.org/abs/nucl-th/0408032v1

Physics

Nuclear Physics

Nuclear Theory

gzipped tar archiv containing LaTeX source, bibliography file (*.bbl), all figures as *.eps, and the style files

Scientific paper

10.1140/epja/i2004-10054-4

We present an analysis of two-proton shell gaps in Sn isotopes. As the theoretical tool we use self-consistent mean-field models, namely the relativistic mean-field model and the Skyrme-Hartree-Fock approach, both with two different pairing forces, a delta interaction (DI) model and a density-dependent delta interaction (DDDI). We investigate the influence of nuclear deformation as well as collective correlations and find that both effects contribute significantly. Moreover, we find a further significant dependence on the pairing force used. The inclusion of deformation plus correlation effects and the use of DDDI pairing provides agreement with the data.

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