https://doi.org/10.1051/epjconf/202532902001
Understanding the Effect of Chiral NN Parametrization on Nuclear Shapes From an Ab Initio Perspective
1 Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803, USA
2 Department of Physics, Chalmers Institute of Technology, Gothenburg, Sweden
3 Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA
4 Nuclear Physics Institute of the Czech Academy of Sciences, 250 68 Rež, Czech Republic
5 Department of Computer Systems, Faculty of Information Technology, Czech Technical University in Prague, Prague 16000, Czech Republic
* e-mail: kbeck13@lsu.edu
Published online: 25 June 2025
The ab initio symmetry-adapted no-core shell model naturally describes nuclear deformation and collectivity, and is therefore well-suited to studying the dynamics and coexistence of shapes in atomic nuclei. For the first time, we analyze how these features in low-lying states of 6Li and 12C are impacted by the underlying realistic nucleon-nucleon interaction. We find that the interaction parametrization has a notable but limited effect on collective shapes in the lowest 6Li and 12C states, while collective structures in the excited 2+ state of 12C are significantly more sensitive to the interaction parameters and exhibits emergent shape coexistence.
© The Authors, published by EDP Sciences, 2025
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