Single particle structure of $^{209,210}$Pb and $^{206}$Hg investigated through the deep inelastic reaction $^{136}$Xe $+ \quad^{208}$Pb
POSTER
Abstract
The region of nuclei around $^{208}$Pb is rich in information relevant to nuclear structure and astrophysics, yet is relatively unexplored. To access these nuclei, a deep inelastic reaction was performed at Argonne National Laboratory's Gammasphere, where a $^{136}$Xe beam was incident on a $^{208}$Pb target. Our analysis focused on$^{\, 209}$Pb, $^{210}$Pb and $^{206}$Hg, and our findings of new relevant information include energy level schemes, angular correlations resulting in level spins and gamma-ray multipolarities, and half-lives of isomeric states. Known transitions in these nuclei were observed and confirmed and coincidence techniques were used to expand upon this data to discover new excited states. The results from this study were compared to theoretical shell model calculations and states interpreted in terms of valence nucleon excitation or coupling of the extra neutron(s) or proton holes to the double magic (Z$=$82, N$=$126) $^{208}$Pb core. Results will be presented.
*Supported by US DOE under the SULI Program and Award No. DE-FG06-97ER41026 and No. DE-FG02-94ER40834 and Contract No. DE-AC02-06CH11357 and No. DE-AC02-06CH10886.