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Clustering Structure of 10Be Studied with the Deformed RMF+BCS Method |
| ZHONG Ming-Fei, LI Jia-Xing, ZHANG Deng-Gao, HAN Rui, JI Juan-Xia, CHEN Li-Xiang |
| School of Physical Science and Technology, Southwest University, Chongqing 400715 |
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ZHONG Ming-Fei, LI Jia-Xing, ZHANG Deng-Gao et al 2010 Chin. Phys. Lett. 27 022103 |
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Abstract We investigate the nucleus 10Be using the deformed relativistic mean field (RMF) model and BCS theory. The calculated density distribution suggests two α clusters in the nucleus 10Be. According to BCS theory, the two valence neutrons transit to the first excited state 02+ in a pair and form a 2-n cluster. By comparing the two neutron separation energy (S2n) with the single neutron separation energy (Sn), and analyzing the difference between the neutron and proton rms radii (Rn-Rp) calculated by the deformed RMF, we suggest that 10Be is the best candidate for a two-neutron skin. The two-neutron skin clings to the 2α clusters closely and makes the two α clusters have cross and chain distribution.
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| Keywords:
21.60.Gx
21.10.Gv
21.60.Jz
21.10.Dr
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Received: 11 August 2009
Published: 08 February 2010
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| PACS: |
21.60.Gx
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(Cluster models)
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21.10.Gv
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(Nucleon distributions and halo features)
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21.60.Jz
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(Nuclear Density Functional Theory and extensions (includes Hartree-Fock and random-phase approximations))
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21.10.Dr
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(Binding energies and masses)
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