Abstract
The nuclear structure of neutron-rich N>126 nuclei has been investigated following their production via relativistic projectile fragmentation of a EIA=1 GeV 238U beam. Metastable states in the N=128 isotones 208Hg and 209Tl have been identified. Delayed γ-ray transitions are interpreted as arising from the decay of Iπ=(8+) and 17/2+) isomers respectively. The data allow for the so far most comprehensive verification of the shell-model approach in the region determined by magic numbers Z<82 and N>126
Original language | English |
---|---|
Journal | Physical Review C |
Volume | 80 |
Issue number | 6 |
DOIs | |
Publication status | Published - Dec 2009 |