Investigation of potential ultra-low $Q$-value $\beta$-decay candidates ${}^{89}$Sr and ${}^{139}$Ba using Penning trap mass spectrometry

R. Sandler, G. Bollen, N. D. Gamage +6

Background: Ultra-low $Q$-value $\beta$-decays are interesting processes to study with potential applications to nuclear $\beta$-decay theory and neutrino physics. While a number of potent…