Dice Question Streamline Icon: https://streamlinehq.com

Reconciling fp-shell occupancy discrepancies for 34Si

Reconcile the discrepancies in fp-shell neutron occupancies for 34Si between FSU/VS-IMSRG predictions and the occupancies reported by Lică et al. (2019) through comprehensive examinations of the underlying Hamiltonians and systematic studies of nearby nuclei.

Information Square Streamline Icon: https://streamlinehq.com

Background

The authors report that their calculations (FSU and VS-IMSRG) do not reproduce the high f7/2 and f5/2 occupancies reported in Lică et al. (2019). Mixing within FSU does not resolve the issue, and VS-IMSRG with natural mixing also fails to match those occupancies.

They argue that the disagreements likely reflect differences in collective components of the Hamiltonians and that resolving this requires comprehensive theoretical analyses and systematic experimental/theoretical studies of nearby nuclei, which lie beyond the scope of the present work.

References

The disagreements suggest significant difference in the Hamiltonians, possibly in some collective components which cannot be reconciled without comprehensive theoretical examinations of the Hamiltonians, and systematic studies of near-by nuclei.

— Cross-shell excited configurations in the structure of 34Si (2401.04195 - Lubna et al., 8 Jan 2024) in Theoretical Discussion, paragraph on fp-shell occupancy disagreements