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arXiv · 0809.4124

Bubbles in $^{34}$Si and $^{22}$O?

M. Grasso·L. Gaudefroy·E. Khan·T. Nikši\' c·J. Piekarewicz·O. Sorlin·N. Van Giai·D. Vretenar
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Abstract

Bubble nuclei are characterized by a depletion of their central density. Their existence is examined within three different theoretical frameworks: the shell model as well as non-relativistic and relativistic microscopic mean-field approaches. We propose $^{34}$Si and $^{22}$O as possible candidates for proton and neutron bubble nuclei, respectively. In the case of $^{22}$O, we observe a significant model dependence, thereby calling into question the bubble structure of $^{22}$O. In contrast, an overall agreement among the models is obtained for $^{34}$Si. Indeed, all models predict a central proton density depletion of about 40%. This result provides strong evidence in favor of a proton bubble in $^{34}$Si.

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M. Grasso, L. Gaudefroy, E. Khan, T. Nikši\' c, J. Piekarewicz, O. Sorlin, N. Van Giai, D. Vretenar. 2008-09-24. Bubbles in $^{34}$Si and $^{22}$O?. https://arxiv.org/abs/0809.4124

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