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arXiv · 1706.06538

New cluster approach on properties of 8-11Be isotopes with isospin-dependent spin-orbit potential

Mengjiao Lyu·Zhongzhou Ren·Hisashi Horiuchi·Bo Zhou·Yasuro Funaki·Gerd Röpke·Peter Schuck·Akihiro Tohsaki·Chang Xu·Taiichi Yamada
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Abstract

The nonlocalized clustering approach is generalized to 8-11Be isotopes with isospin dependent spin-orbit potential. A new form of the Tohsaki-Horiuchi-Schuck-R\"opke (THSR) wave function is introduced to provide a correct description for the {\sigma}-binding neutron in 11Be. Systematic calculations for 8-11Be isotopes are performed and results fit well with experimental values. The low energy spectrum of 11Be is also obtained, especially the correct spin-parity 1/2+ is reproduced for the intruder ground state. The exotic neutron halo structure of 11Be is studied by calculations of root-mean-square radii and density distribution. We obtain a large spatial distribution for the last valence neutron of 11Be, which fits the phenomenological extracted value from experimental data. The spectroscopic factor is also calculated and discussed for the 1/2+ ground state of 11Be.

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Mengjiao Lyu, Zhongzhou Ren, Hisashi Horiuchi, Bo Zhou, Yasuro Funaki, Gerd Röpke, Peter Schuck, Akihiro Tohsaki, Chang Xu, Taiichi Yamada. 2017-06-20. New cluster approach on properties of 8-11Be isotopes with isospin-dependent spin-orbit potential. https://arxiv.org/abs/1706.06538

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