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- Title
Single-Particle and Collective Structures in Neutron-Rich Sr Isotopes.
- Authors
Sieja, Kamila
- Abstract
Neutron-rich Sr nuclei around N = 60 exhibit a sudden shape transition from a spherical ground state to strongly prolate-deformed. Recently, much new insight into the structure of Sr isotopes in this region has been gained through experimental studies of the excited levels, transition strengths, and spectroscopic factors. In this work, a "classic" shell model description of strontium isotopes from N = 50 to N = 58 is provided, using a natural valence space outside the 78 Ni core. Both even–even and even–odd isotopes are addressed. In particular, spectroscopic factors are computed to shed more light on the structure of low-energy excitations and their evolution along the Sr chain. The origin of deformation at N = 60 is mentioned in the context of the present and previous shell model and Monte Carlo shell model calculations.
- Subjects
STRONTIUM isotopes; GROUND state (Quantum mechanics); MONTE Carlo method; NUCLEAR structure; SPECTROMETRY
- Publication
Universe (2218-1997), 2022, Vol 8, Issue 1, p23
- ISSN
2218-1997
- Publication type
Article
- DOI
10.3390/universe8010023