Speaker
Marilena Lykiardopoulou
(TRIUMF)
Description
Alpha-, beta-, and proton-decay energies have been combined with TITAN mass values for 150−157Yb to expand and refine the mass surface in the proton-rich Z = 70 − 82 region. The calculations were performed using the Atomic Mass Evaluation (AME) algorithm. As a result, a total of 11 new ground state masses were accordingly determined while the uncertainties were reduced by more than a factor of two for 9 previously determined ground-state masses. The new information allows the determination of the two-proton drip line for elements between Ir and Pb and provides predictions of new candidates for two-proton emission. In addition, we examine binding energies in this region for Thomas-Ehrman shifts, so far only visible for light nuclides.
Primary author
Marilena Lykiardopoulou
(TRIUMF)
