Spectroscopy in the Second Minimum: Isotopic Limits Lifetimes and Magnetic Properties of Superdeformed Tl Nuclei

摘要

In-beam γ-ray spectroscopic studies of superdeformed bands in the mass 190 region are discussed with emphasis on recent results for Tl nuclei. Among those results, superdeformation at the edge of the region (in ¹⁸⁹Tl) and the first measurement of a superdeformed quadrupole moment in an odd-Z nucleus (¹⁹¹Tl) is presented. The experiments were conducted with the Gammasphere array at the Lawrence Berkeley National Laboratory. They are examples for the type of physics addressed in the first phase of Gammasphere operation.