Mass Measurements of ^119g,mCd and ^119g,mAg Astromers with the Canadian Penning Trap

Precise nuclear mass measurements are becoming increasingly important as models of nucleosynthesis continue to evolve. Of particular interest are neutron rich nuclei along the r-process path. In order to discern which conditions are necessary for this chain of nucleosynthesis to take place, astrophysical models must be able to accurately reproduce observed isotopic abundances. For this task they need access to large volumes of precise nuclear data such as half-lives, branching ratios, masses, and isomeric states. Recent developments indicate that isomeric states can play a significant role in the r-process. To that end the Canadian Penning Trap (CPT) was used in an extensive campaign to search for astrophysically relevant isomers – so called “astromers” – along the r-process pathway. This presentation will present the mass measurement of the ground states and isomer states of ¹¹⁹Cd and ¹¹⁹Ag.