First observation of excited states in 197At: The onset of deformation in neutron-deficient astatine nuclei
European Physical Journal A, Volume 5, No. 1, Year 1999
Notification
URL copied to clipboard!
Excited states in the Z = 85 nucleus 197At have been identified for the first time using the recoil-decay-tagging (RDT) technique. The excitation energy of these states is found to be consistent with the systematics of neutron-deficient astatine nuclei and with theoretical calculations indicating that the nucleus may be deformed in its ground state.