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Nuclear "bubble" structure in $^{34}$Si

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.
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http://hal.in2p3.fr/in2p3-00372433
Contributor : Michel Lion <>
Submitted on : Wednesday, April 1, 2009 - 10:53:20 AM
Last modification on : Thursday, June 17, 2021 - 3:50:22 AM

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M. Grasso, L. Gaudefroy, E. Khan, T. Niksic, J. Piekarewicz, et al.. Nuclear "bubble" structure in $^{34}$Si. Physical Review C, American Physical Society, 2009, 79, pp.034318. ⟨10.1103/PhysRevC.79.034318⟩. ⟨in2p3-00372433⟩

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