Abstract
We report the mass measurement of the short-lived nuclide ( ms) performed using the Penning trap mass spectrometer TITAN at TRIUMF. Our mass excess value of keV is in agreement with previous measurements, but is a factor of 7 more precise than the Atomic Mass Evaluation of 2003. To address an unresolved discussion on the spin assignment of isospin states in and , we reevaluate the isobaric mass multiplet equation for the lowest lying multiplet in the system and use the extracted parameters to extrapolate from the known excited and states in . Though this analysis favors the second known state in to be , cannot be excluded.
- Received 22 December 2009
DOI:https://doi.org/10.1103/PhysRevC.81.024314
©2010 American Physical Society