Structure of 12Be: intruder d-wave strength at N=8.
Structure of 12Be: intruder d-wave strength at N=8.
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DOI：
10.1103/physrevlett.96.032502
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发表时间：
2005-10
影响因子：
8.6
通讯作者：
S. Pain;W. Catford;N. Orr;J. Angelique;N. Ashwood;V. Bouchat;N. Clarke;N. Curtis;M. Freer;B. Fulton;F. Hanappe;M. Labiche;J. Lecouey;R. Lemmon;D. Mahboub;A. Ninane;G. Normand;N. Soić;L. Stuttgé;C. Timis;J. Tostevin;J. Winfield;V. Z. .. U. O. Surrey;Lpc Caen. University of Birmingham;Universit́e Libre de Bruxelles;U. York;University of Paisley;Cclrc Daresbury Laboratory;Universit'e catholique de Louvain;IResS Strasbourg
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文献类型：
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作者：
S. Pain;W. Catford;N. Orr;J. Angelique;N. Ashwood;V. Bouchat;N. Clarke;N. Curtis;M. Freer;B. Fulton;F. Hanappe;M. Labiche;J. Lecouey;R. Lemmon;D. Mahboub;A. Ninane;G. Normand;N. Soić;L. Stuttgé;C. Timis;J. Tostevin;J. Winfield;V. Z. .. U. O. Surrey;Lpc Caen. University of Birmingham;Universit́e Libre de Bruxelles;U. York;University of Paisley;Cclrc Daresbury Laboratory;Universit'e catholique de Louvain;IResS Strasbourg
在12Be基态中，N=8壳模型幻数的破缺已被确定为包含了入侵d波轨道的显著占用。这与所有其他N=8等音形成鲜明对比，它们都比12Be更奇特，也更不奇特。[公式：见文]轨道和[公式：见文]入侵者轨道的占有率是通过测量高能12Be束流中导致11Be束缚态和非束缚态的中子移除而推断出来的。
The breaking of the N=8 shell-model magic number in the 12Be ground state has been determined to include significant occupancy of the intruder d-wave orbital. This is in marked contrast with all other N=8 isotones, both more and less exotic than 12Be. The occupancies of the [FORMULA: SEE TEXT]orbital and the [FORMULA: SEE TEXT], intruder orbital were deduced from a measurement of neutron removal from a high-energy 12Be beam leading to bound and unbound states in 11Be.