Observation of abnormally large radii of nuclei in excited states in the vicinity of neutron thresholds

被引：0
|
作者：
A. A. Ogloblin
A. N. Danilov
T. L. Belyaeva
A. S. Demyanova
S. A. Goncharov
W. Trzaska
机构：
[1] Russian Research Centre Kurchatov Institute,Skobeltsyn Institute of Nuclear Physics
[2] Universidad Nacional Autónoma de México (UNAM),undefined
[3] Moscow State University,undefined
[4] University of Jyväskylä,undefined
来源：
Physics of Atomic Nuclei | 2011年 / 74卷
关键词：
Atomic Nucleus; Inelastic Scattering; Cluster State; Rotational Band; Radioactive Nucleus;
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学科分类号：
摘要：
Differential cross sections for inelastic scattering leading to the excitation of some nuclear states situated near neutron-emission thresholds were analyzed. With the aid of a modified diffraction model, abnormally large radii were found for the 1/21+ state of the 13C nucleus at 3.09 MeV, for the first levels of positive-parity rotational bands in the 9Be (1/2+ level at 1.68 MeV and 5/2+ level at 3.05 MeV) and 11Be (5/2+ level at 1.78 MeV and 3/2+ level at 3.41 MeV) nuclei, and for the 21+ state of the 14Be nucleus at 1.54 MeV and 11− state of the 12Be nucleus at 2.7 MeV. All of these states possess signatures typical of neutron halos.
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页码：1548 / 1561
页数：13
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