Abstract
The nonlocalized clustering approach is generalized to \(^{8-11}\)Be isotopes with isospin dependent spin–orbit potential. A new form of the Tohsaki-Horiuchi-Schuck-Röpke (THSR) wave function is introduced to provide a correct description for the \(\sigma \)-binding neutron in \(^{11}\)Be. Systematic calculations for \(^{8-11}\)Be isotopes are performed and results fit well with experimental values. The low energy spectrum of \(^{11}\)Be is also obtained, especially the correct spin-parity \(1/2^{+}\) is reproduced for the intruder ground state. The exotic neutron halo structure of \(^{11}\)Be is studied by calculations of root-mean-square radii and density distribution. The spectroscopic factor is also calculated and discussed for the \(1/2^+\) ground state of \({}^{11}\)Be.
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Acknowledgements
The authors would like to thank Prof. Yanlin Ye, Prof. Kanada-En’yo, Prof. Massaki Kimura, Dr. Hantao Li, and Dr. Niu Wan for the valuable discussions. This work is supported by the National Natural Science Foundation of China (Grants No. 12035011, No. 11975167, No. 11761161001, No. 11535004, No. 11961141003, No. 11881240623, No. 11822503 and No. 11575082), the National Key Research and Development Program of China (Grants No. 2018YFA0404403 and No. 2016YFE0129300), the Science and Technology Development Fund of Macau under Grant No. 008/2017/AFJ, and the Central Universities (Grant No. 22120200101). The ECT* Trento has supported this work and this infrastructure is part of a project that has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 824093.
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Communicated by David Blaschke.
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Lyu, M., Ren, Z., Horiuchi, H. et al. Properties of \(^{8-11}\)Be isotopes with isospin-dependent spin–orbit potential in a cluster approach. Eur. Phys. J. A 57, 51 (2021). https://doi.org/10.1140/epja/s10050-021-00363-5
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DOI: https://doi.org/10.1140/epja/s10050-021-00363-5