https://doi.org/10.1140/epja/s10050-024-01246-1
Regular Article - Theoretical Physics
Exploration of the exotic structure of deformation nuclei by complex momentum representation method
School of Management Science and Engineering, Anhui University of Finance and Economics, 233030, Bengbu, China
c
120210067@aufe.edu.cn
d
xitiruo_wjq@foxmail.com
Received:
13
September
2023
Accepted:
16
January
2024
Published online:
6
February
2024
The discovery of halos, one of the most interesting phenomena in exotic nuclei, has opened up a new field in nuclear physics. To understand this unique property, the level structures of 
B, 
C, 
N, 
O, 
F, and 
Ne are studied with the complex momentum representation (CMR) method. We calculate the single-particle energies of bound and resonant states, and examine the occupation probabilities, density distribution, wavefunctions of the valence neutron occupied levels, and the root mean square (RMS) radii of the single-particle orbits. These results show that B, C, and N are neutron halo nuclei dominated by s-wave configurations in 
, 
, and 
, respectively. Although the last valence neutron of O, F, and Ne all occupy the 2
orbit (the orbit with a dominant s-wave configuration), the single-particle levels occupied by the valence neutrons are rather bound. It implies a neutron skin structure in O, F, and Ne with spherical shape or prolate deformation. The halo phenomena are not only related to the orbital occupied by the last valence neutron but also to its separation energy. This prediction has reference value for further exploration of neutron halo in experiments.
Mathematics Subject Classification: 21.10.Gv || 21.10.Pc || 21.60.Jz || 25.70.Ef
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
