Abstract
Excited states in Hg were populated using the Sm(Ar,3n)Hg reaction and studied by in-beam conversion-electron spectroscopy. Conversion electrons emitted at the target position were measured using the Silicon Array for Conversion Electron Detection (SACRED) spectrometer and tagged through the characteristic decays of Hg detected in a position-sensitive silicon strip detector located at the focal plane of the gas-filled recoil separator Recoil Ion Transport Unit (RITU). Electron conversion of transitions previously assigned to Hg through in-beam -ray spectroscopy studies was identified up to the 10 transition and the intensities of the conversion-electron transitions were found to be consistent with the previous multipolarity assignments. Evidence was also found for two highly converted transitions in Hg: a 167 keV transition is interpreted as the transition from the newly identified 2 state at 601 keV to the 2 state at 434 keV, while a 420 keV transition is assigned as the decay from the 0 bandhead of the prolate-deformed configuration to the weakly deformed ground state.
- Received 23 June 2011
DOI:https://doi.org/10.1103/PhysRevC.84.034308
©2011 American Physical Society