By using only a fraction of the model space extended beyond current no-core shell-model limits and a many-nucleon interaction with a single parameter, we gain additional insight within a symmetry-guided shell-model framework, into the many-body dynamics that gives rise to the ground state rotational band together with phenomena tied to alpha-clustering substructures in the low-lying states in 12C, and in particular, the challenging Hoyle state and its first 2+ and 4+ excitations. For these states, we offer a novel perspective emerging out of no-core shell-model considerations, including a discussion of associated nuclear deformation and matter radii. This, in turn, provides guidance for ab initio shell models by informing key features of nuclear structure and the interaction. © 2013 Elsevier B.V.
Publication Source (Journal or Book title)
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Dreyfuss, A., Launey, K., Dytrych, T., Draayer, J., & Bahri, C. (2013). Hoyle state and rotational features in Carbon-12 within a no-core shell-model framework. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 727 (4-5), 511-515. https://doi.org/10.1016/j.physletb.2013.10.048