Conveners
Session 3
- Atsushi Tamii (Research Center for Nuclear Physics)
$\beta$-delayed neutron emission is a common and dominating decay process for most of the neutron-rich nuclei far from the stability line. Experimental investigations on $\beta$-delayed neutrons are of great significance in a large variety of fields, including nuclear physics, astrophysics, and industrial applications. First, it is a sensitive probe to the $\beta$-decay feedings above neutron...
Understanding neutron-rich unstable nuclei is crucial for investigating the r-process nucleosynthesis. In particular, the $\beta$ decay of the $N = 126$ isotones is decisive for the production of the third peak, including gold and platinum. In this talk, based on nucleosynthesis uncertainty calculations, I will discuss the possibility of addressing the "missing gold problem" in the galactic...
The sensitivities of the r-process rare-earth peak abundances to nuclear masses and beta-decay half-lives have been studied in different astrophysical scenarios. The most impactful nuclei are identified by varying nuclear masses and beta-decay half-lives, respectively. The impacts of nuclear mass as well as β-decay rate of an individual nucleus on the r-process rare-earth peak abundances are...
