Nuclear structure "southeast" of Pb208: Isomeric states in Hg208 and Tl209

N. Al-Dahan, Zs Podolyák, P. H. Regan, M. Górska, H. Grawe, K. H. Maier, J. Gerl, S. B. Pietri, H. J. Wollersheim, N. Alkhomashi, A. Y. Deo, A. M.Denis Bacelar, G. Farrelly, S. J. Steer, A. M. Bruce, P. Boutachkov, C. Domingo-Pardo, A. Algora, J. Benlliure, A. BraccoE. Calore, E. Casarejos, I. J. Cullen, P. Detistov, Zs Dombrádi, M. Doncel, F. Farinon, W. Gelletly, H. Geissel, N. Goel, J. Grebosz, R. Hoischen, I. Kojouharov, N. Kurz, S. Lalkovski, S. Leoni, F. Molina, D. Montanari, A. I. Morales, A. Musumarra, D. R. Napoli, R. Nicolini, C. Nociforo, A. Prochazka, W. Prokopowicz, B. Rubio, D. Rudolph, H. Schaffner, P. Strmen, I. Szarka, T. Swan, J. S. Thomas, J. J. Valiente-Dobón, S. Verma, P. M. Walker, H. Weick

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21 Citations (Scopus)

Abstract

The nuclear structure of neutron-rich N>126 nuclei has been investigated following their production via relativistic projectile fragmentation of a E/A=1 GeV U238 beam. Metastable states in the N=128 isotones Hg208 and Tl209 have been identified. Delayed γ-ray transitions are interpreted as arising from the decay of Iπ=(8+) and (17/2+) isomers, respectively. The data allow for the so far most comprehensive verification of the shell-model approach in the region determined by magic numbers Z<82 and N>126.

Original languageEnglish
Article number061302
JournalPhysical Review C - Nuclear Physics
Volume80
Issue number6
DOIs
Publication statusPublished - Dec 15 2009

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Al-Dahan, N., Podolyák, Z., Regan, P. H., Górska, M., Grawe, H., Maier, K. H., Gerl, J., Pietri, S. B., Wollersheim, H. J., Alkhomashi, N., Deo, A. Y., Bacelar, A. M. D., Farrelly, G., Steer, S. J., Bruce, A. M., Boutachkov, P., Domingo-Pardo, C., Algora, A., Benlliure, J., ... Weick, H. (2009). Nuclear structure "southeast" of Pb208: Isomeric states in Hg208 and Tl209. Physical Review C - Nuclear Physics, 80(6), [061302]. https://doi.org/10.1103/PhysRevC.80.061302