Speaker
Description
The range of applicability of nuclear ab initio calculations is expanding. Owing to developments in, for example, chiral effective field theory and renormalization group techniques, we are now able to obtain results that maintain a connection to the underlying theory of the strong interaction, quantum chromodynamics. By introducing a new storage scheme for the three-body matrix elements, we can now compute properties of heavy-mass nuclei, enabling the investigation of experimentally challenging quantities. In this presentation, I will introduce our current activities relevant to astrophysics, based on the valence-space in-medium similarity renormalization group approach, a powerful many-body method. These activities include calculations of mass and beta-decay half-lives in neutron-rich nuclei.