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DOE OSTI · 1836447

Effective shell-model interaction for nuclei “southeast” of 100 Sn

Sun, ZHONGHAO·Hagen, Gaute·Jansen, Gustav·Papenbrock, Thomas F.
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Abstract

We construct an effective shell-model interaction for the valence space spanned by single-particle neutron and single-hole proton states in 100 Sn. Starting from chiral nucleon-nucleon and three-nucleon forces and single-reference coupled-cluster theory for 100 Sn we apply a second similarity transformation that decouples the valence space. The particle-particle components of the resulting effective interaction can be used in shell model calculations for neutron deficient tin isotopes. The hole-hole interaction can be used to calculate the N=50 isotones south of 100 Sn, and the full particle-hole interaction describes nuclei in the region southeast of 100 Sn. We compute low-lying excited states in selected nuclei southeast of 100 Sn, and find reasonable agreement with data. The presented techniques can also be applied to construct effective shell-model interactions for other regions of the nuclear chart.

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS90 ≤ A ≤ 149Nuclear forcesNuclear many-body theoryNuclear structure & decaysRare & new isotopesShell model

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Sun, ZHONGHAO, Hagen, Gaute, Jansen, Gustav, Papenbrock, Thomas F.. 2021-12-14. Effective shell-model interaction for nuclei “southeast” of 100 Sn. https://doi.org/10.1103/physrevc.104.064310

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