تقرير
Two $^9$Li clusters connected with two valence neutrons in $^{20}$C
| العنوان: | Two $^9$Li clusters connected with two valence neutrons in $^{20}$C |
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| المؤلفون: | Itagaki, Naoyuki, Fukui, Tokuro, Tanaka, Junki, Kikuchi, Yuma |
| سنة النشر: | 2021 |
| المجموعة: | Nuclear Experiment Nuclear Theory |
| مصطلحات موضوعية: | Nuclear Theory, Nuclear Experiment |
| الوصف: | Many preceding works have shown in $^{11}$Li the presence of the halo structure comprised of the weakly bound two neutrons around $^9$Li, and it is intriguing to see how this halo structure changes when another $^9$Li approaches. In this study, we introduce a four-body model for $^{20}$C with two $^9$Li clusters and two valence neutrons. The recent development of the antisymmetrized quasi cluster model (AQCM) makes it possible to generate $jj$-coupling shell-model wave functions from $\alpha$ cluster models. Here, $jj$-coupling shell model wave function of $^9$Li is regarded as a cluster, which corresponds to the subclosure configuration of $p_{3/2}$ for the neutrons, and we discuss how the two neutrons connect two $^9$Li clusters. Until now, most of the clusters in the conventional models have been limited to the closures of the three-dimensional harmonic oscillators, such as $^4$He, $^{16}$O, and $^{40}$Ca; however, owing to AQCM, it is feasible to utilize the $jj$-coupling shell model wave functions as plural subsystems quite easily. The appearance of a rotational band structure with a cluster structure around the four-body threshold energy is discussed. Comment: arXiv admin note: text overlap with arXiv:2011.12642 |
| نوع الوثيقة: | Working Paper |
| الوصول الحر: | http://arxiv.org/abs/2102.04589Test |
| رقم الانضمام: | edsarx.2102.04589 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |