Abstract
The atomic masses of the neutron-rich krypton isotopes have been determined with the tandem Penning trap mass spectrometer ISOLTRAP with uncertainties ranging from 20 to 220 ppb. The masses of the short-lived isotopes and were measured for the first time. The masses of the radioactive nuclides and disagree by 4 and 6 standard deviations, respectively, from the present Atomic-Mass Evaluation database. The resulting modification of the mass surface with respect to the two-neutron separation energies as well as implications for mass models and stellar nucleosynthesis are discussed.
1 More- Received 5 May 2006
DOI:https://doi.org/10.1103/PhysRevC.74.034331
©2006 American Physical Society