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arXiv · 1408.5293

Investigation of ${}^9$Be from nonlocalized clustering concept

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

The nonlocalized aspect of clustering, which is a new concept for self-conjugate nuclei, is extended for the investigation of the N{\not=}Z nucleus ${}^9$Be. A modified version of the THSR (Tohsaki-Horiuchi-Schuck-Röpke) wave function is introduced based on the container picture. It is found that the constructed negative-parity THSR wave function is very suitable for describing the cluster states of ${}^9$Be. Namely the nonlocalized clustering is shown to prevail in ${}^9$Be. The calculated binding energy and radius of ${}^9$Be are consistent with calculations in other models and with experimental values. The squared overlaps between the THSR wave function and the Brink+GCM wave function for the $3/2^-$ rotational band of ${}^9$Be are found to be near 96%. Furthermore, by showing the density distribution of the ground state of ${}^9$Be, the π-orbit structure is naturally reproduced by using this THSR wave function.

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Mengjiao Lyu, Zhongzhou Ren, Bo Zhou, Yasuro Funaki, Hisashi Horiuchi, Gerd Röpke, Peter Schuck, Akihiro Tohsaki, Chang Xu, Taiichi Yamada. 2014-12-31. Investigation of ${}^9$Be from nonlocalized clustering concept. https://doi.org/10.1103/physrevc.91.014313

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