Nuclear “ bubble” structure in 34Si

Grasso, M. and Gaudefroy, L. and Khan, E. and Nikšić, Tamara and Piekarewicz, J. and Sorlin, O. and Giai, N. Van and Vretenar, Dario (2009) Nuclear “ bubble” structure in 34Si. Physical Review C, 79 (3). pp. 34318-8. ISSN 0556-2813

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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 and nonrelativistic and relativistic microscopic mean-field approaches. We analyze 34Si and 22O as possible candidates for proton and neutron bubble nuclei, respectively. In the case of 22O, we observe a significant model dependence, thereby calling into question the bubble structure of 22O. In contrast, an overall agreement among the models is obtained for 34Si. Indeed, all models predict a central proton density depletion of about 40% and a central charge density depletion of 25%– 30%. This result provides strong evidence in favor of a proton bubble in 34Si.

Item Type: Article
Date: March 2009
Subjects: NATURAL SCIENCES > Physics > Nuclear Physics
Additional Information: Copyright (2009) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Project code: 119-1191005-1010
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 29 May 2014 20:27
Last Modified: 29 May 2014 20:27
URI: http://digre.pmf.unizg.hr/id/eprint/1973

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