Towards heavy-mass ab initio nuclear structure: Open-shell Ca, Ni and Sn 
isotopes from Bogoliubov coupled-cluster theory

Tichai, A.; Demol, P.; Duguet, T.

doi:10.1016/j.physletb.2024.138571

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Towards heavy-mass ab initio nuclear structure: Open-shell Ca, Ni and Sn isotopes from Bogoliubov coupled-cluster theory

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Tichai, A.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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https://www.sciencedirect.com/science/article/abs/pii/S0370269324001291?via%3Dihub
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https://arxiv.org/pdf/2307.15619.pdf
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Citation

Tichai, A., Demol, P., & Duguet, T. (2024). Towards heavy-mass ab initio nuclear structure: Open-shell Ca, Ni and Sn isotopes from Bogoliubov coupled-cluster theory. Physics Letters B, 851: 138571. doi:10.1016/j.physletb.2024.138571.

Cite as: https://hdl.handle.net/21.11116/0000-000F-0603-7

Abstract

Recent developments in nuclear many-body theory enabled the description of open-shell medium-mass nuclei from first principles by exploiting the spontaneous breaking of symmetries within correlation expansion methods. Once combined with systematically improvable inter-nucleon interactions consistently derived from chiral effective field theory, modern ab initio nuclear structure calculations provide a powerful framework to deliver first-principle predictions accompanied with theoretical uncertainties. In this Letter, controlled ab initio Bogoliubov coupled cluster (BCC) calculations are performed for the first time, targeting the ground-state of all calcium, nickel and tin isotopes up to mass A ≈ 180. While showing good agreement with available experimental data, the shell structure evolution in neutron-rich isotopes and the location of the neutron drip-lines are predicted. The BCC approach constitutes a key development towards reliable first-principles simulations of heavy-mass open-shell nuclei.