Correlations between nuclear landscape boundaries and neutron-rich r-process abundances
arXiv:2105.13043 · doi:10.1103/PhysRevC.105.034315
Abstract
Motivated by the newly observed Na in experiments, systematic calculations of global nuclear binding energies with seven Skyrme forces are performed. We demonstrate the strong correlation between the two-neutron separation energies () of Na and the total number of bound nuclei of the whole nuclear landscape. Furthermore, with calculated nuclear masses, we perform astrophysical rapid-neutron capture process (-process) simulations by using nuclear reaction code TALYS and nuclear reaction network code SkyNet. -process abundances from ejecta of neutron star mergers and core-collapse supernova are compared. Prominent covariance correlations between nuclear landscape boundaries and neutron-rich -process abundances before the third peak are shown. This study highlights the needs for further experimental studies of drip-line nuclei around Na for better constraints on nuclear landscape boundaries and -process.
7 pages, 5 figures
References in corpus (10)
- The r-process of stellar nucleosynthesis: Astrophysics and nuclear physics achievements and mysteries
- Light Curves of the Neutron Star Merger GW170817/SSS17a: Implications for R-Process Nucleosynthesis
- Surface diffuseness correction in global mass formula
- Magnetorotationally driven Supernovae as the origin of early galaxy -process elements?
- Current Status of r-Process Nucleosynthesis
- SkyNet: A modular nuclear reaction network library
- Deformed Coordinate-Space Hartree-Fock-Bogoliubov Approach to Weakly Bound Nuclei and Large Deformations
- Microscopic calculation and LDA of the spatial dependence of the pairing field with bare and induced interactions
- Constraints on the neutron drip-line with the newly observed 39Na
- Microscopic description of neutron emission rates in compound nuclei