Isomers and seniority in the trans-Pb nuclei


Ressler J., Beausang C., Casten R., Zamfir N., Ai H., Amro H., ...More

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, vol.31, no.10, 2005 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 31 Issue: 10
  • Publication Date: 2005
  • Doi Number: 10.1088/0954-3899/31/10/041
  • Title of Journal : JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS

Abstract

Low-energy excited states of Ra-210 and Ra-208 were investigated at the Wright Nuclear Structure Laboratory of Yale University. Fusion evaporation recoils were selected using the gas-filled spectrometer, SASSYER. Delayed gamma-rays, following isomeric decays, were detected at the focal plane of SASSYER with,a small array,of HPGe detectors. Transitions following the proposed J(pi) = 8(+) isomers were. observed, and the half-lives measured. The experiments are discussed and results compared to expectations from the seniority scheme.