2021/08/10 by Kristina D. Launey, Alexis Mercenne, Tomas Dytrych · 48 citations
Physics and Astronomy · #astro-ph.SR #nucl-th
paper · pdf · doi:10.1146/annurev-nucl-102419-033316
published in Annual Review of Nuclear and Particle Science 71(1), 253-277 (Annual Reviews) · 26 pages, 7 figures, 1 table; in Annual Review of Nuclear and Particle Science
crossref created 2021/06/29 · arxiv created 2021/08/10 · arxiv updated 2021/08/12 · crossref issued 2021/09/21 · crossref published 2021/09/21 · crossref published-print 2021/09/21 · crossref deposited 2021/09/21 · crossref indexed 2026/08/05
We review the ab initio symmetry-adapted (SA) framework for determining the structure of stable and unstable nuclei, along with related electroweak, decay and reaction processes. This framework utilizes the dominant symmetry of nuclear dynamics, the shape-related symplectic Sp(3,R) symmetry, which has been shown to emerge from first principles and to expose dominant degrees of freedom that are collective in nature, even in the lightest species or seemingly spherical states. This feature is illustrated for a broad scope of nuclei ranging from helium to titanium isotopes, enabled by recent developments of the ab initio symmetry-adapted no-core shell model expanded to the continuum through the use of the SA basis and that of the resonating group method. The review focuses on energies, electromagnetic transitions, quadrupole and magnetic moments, radii, form factors, and response function moments, for ground-state rotational bands and giant resonances. The method also determines the structure of reaction fragments that is used to calculate decay widths and alpha-capture reactions for simulated x-ray burst abundance patterns, as well as nucleon-nucleus interactions for cross sections and other reaction observables.