Ab initio RRPA with chiral three-body forces removes QBA instabilities and improves agreement with experiment for nuclear bulk, spectroscopic, and response properties in closed-shell nuclei.
Bulk and spectroscopic nuclear properties within an ab initio renormalized random-phase approximation framework
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abstract
A modern chiral potential incorporating the three-body force is adopted to investigate bulk properties, spectra, and nuclear responses of closed-(sub)shell nuclei throughout the nuclear chart within a particle-hole (p-h) renormalized random-phase approximation (RRPA) scheme using a Hartree- Fock (HF) single-particle basis. Our analysis shows that all instabilities induced by the quasiboson approximation (QBA) underlying RPA are removed and an overall better consistency with the experiments is achieved for all observables of the investigated nuclei. The residual discrepancies point out the need of going beyond the p-h space.
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Bulk and spectroscopic nuclear properties within an ab initio renormalized random-phase approximation framework
Ab initio RRPA with chiral three-body forces removes QBA instabilities and improves agreement with experiment for nuclear bulk, spectroscopic, and response properties in closed-shell nuclei.