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arXiv 1012.0431nucl-th
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富奇A中子铷同位素形状转变的特征

Signatures of shape transition in odd-A neutron-rich Rubidium isotopes

R. Rodriguez-Guzman, P. Sarriguren, L. M. Robledo

摘要:

本文研究了奇A铷同位素基态核形状的同位素演化和单准质子组态的系统学。我们使用自洽的Hartree-Fock-Bogoliubov形式主义的Gogny能量密度功能的基础上,两个参数化,D1 S和D1 M,并实现与等填充近似。我们发现一个尖锐的形状转变在N=60的基态的电荷半径和自旋宇称,这是强大的,相互一致的,并与实验一致的清晰的签名。我们指出,这两个观测值的综合分析可以用来预测明确的新的区域,形状转变可能会发展。

英文摘要:

The isotopic evolution of the ground-state nuclear shapes and the systematics of one-quasiproton configurations are studied in odd-A Rubidium isotopes. We use a selfconsistent Hartree-Fock-Bogoliubov formalism based on the Gogny energy density functional with two parametrizations, D1S and D1M, and implemented with the equal filling approximation. We find clear signatures of a sharp shape transition at N=60 in both charge radii and spin-parity of the ground states, which are robust, consistent to each other, and in agreement with experiment. We point out that the combined analysis of these two observables could be used to predict unambiguously new regions where shape transitions might develop.

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