Abstract
The masses of the neutron-rich radon isotopes have been determined for the first time, using the ISOLTRAP setup at CERN ISOLDE. In addition, this experiment marks the first discovery of a new nuclide, , by Penning-trap mass measurement. The new, high-accuracy data allow a fine examination of the mass surface, via the valence-nucleon interaction . The results reveal intriguing behavior, possibly reflecting either a subshell closure or an octupolar deformation in this region.
- Received 4 November 2008
DOI:https://doi.org/10.1103/PhysRevLett.102.112501
©2009 American Physical Society