Nuclear 'bubble' structure in {sup 34}Si
- Institut de Physique Nucleaire, Universite Paris-Sud, IN2P3-CNRS, F-91406 Orsay Cedex (France)
- CEA, DAM, DIF, F-91297 Arpajon (France)
- Physics Department, Faculty of Science, Zagreb University, HR-10000 Zagreb (Croatia)
- Florida State University, Tallahassee, Florida 32306 (United States)
- Grand Accelerateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS-IN2P3, Boulevard Henri Becquerel, Boite Postale 55027, F-14076 Caen Cedex 5 (France)
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 {sup 34}Si and {sup 22}O as possible candidates for proton and neutron bubble nuclei, respectively. In the case of {sup 22}O, we observe a significant model dependence, thereby calling into question the bubble structure of {sup 22}O. In contrast, an overall agreement among the models is obtained for {sup 34}Si. 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 {sup 34}Si.
- OSTI ID:
- 21199616
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 79, Issue 3; Other Information: DOI: 10.1103/PhysRevC.79.034318; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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