nucleus

Physics

Proton halo structure revealed by accurate mass measurement of atomic nucleus

Schematic diagram of the proton and neutron distribution of mirror nuclei argon-31 and aluminum-31. On the left is the weakly bound proton-rich nuclear argon 31, which is predicted to exhibit a significant halo structure in this study. On the right is the deeply bound neutron-rich nucleus aluminum 31. Credit: IMP Researchers at the Institute of Modern Physics (IMP) of the…