Understanding the Effect of Chiral NN Parametrization on Nuclear Shapes from an Ab Initio Perspective

Authors

Kevin S. Becker, Louisiana State University
Kristina D. Launey, Louisiana State University
Andreas Ekström, Chalmers University of Technology
Grigor H. Sargsyan, Michigan State University
Darin C. Mumma, Louisiana State University
Tomáš Dytrych, Louisiana State University
Daniel Langr, Czech Technical University in Prague
Jerry P. Draayer, Louisiana State University

Document Type

Conference Proceeding

Publication Date

6-25-2025

Abstract

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 of⁶Li and¹²C 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 lowest⁶Li and¹²C states, while collective structures in the excited 2⁺ state of¹²C are significantly more sensitive to the interaction parameters and exhibits emergent shape coexistence.

Publication Source (Journal or Book title)

EPJ Web of Conferences

Recommended Citation

Becker, K., Launey, K., Ekström, A., Sargsyan, G., Mumma, D., Dytrych, T., Langr, D., & Draayer, J. (2025). Understanding the Effect of Chiral NN Parametrization on Nuclear Shapes from an Ab Initio Perspective. EPJ Web of Conferences, 329 https://doi.org/10.1051/epjconf/202532902001