Nuclear spectroscopy of the heaviest elements: Studies of 254No, 257Rf, and 261Sg

J. S. Berryman*, R. M. Clark, K. E. Gregorich, J. M. Allmond, D. L. Bleuel, R. J. Cooper, M. Cromaz, M. A. Deleplanque, I. Dragojević, J. Dvorak, P. A. Ellison, P. Fallon, M. A. Garcia, J. M. Gates, S. Gros, O. Gothe, H. B. Jeppesen, D. Kaji, I. Y. Lee, A. O. MacchiavelliK. Morimoto, H. Nitsche, S. Paschalis, M. Petri, J. Qian, L. Stavsetra, F. S. Stephens, M. A. Stoyer, T. J. Ross, H. Watanabe, M. Wiedeking

*Corresponding author for this work

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Recently it has become possible to perform detailed spectroscopy on nuclei beyond Z = 100 with the aim of understanding the underlying single-particle structure of superheavy elements. A number of such experiments have been performed at the 88-Inch Cyclotron of the Lawrence Berkeley National Laboratory using the Berkeley Gas-filled Separator (BGS), coupled with delayed γ-ray and electron-decay spectroscopy. Experiments have been performed on 254No (Z = 102), 257Rf (Z = 104), and 261Sg (Z = 106). The results provide new information on the properties of transactinide nuclei, which is important for testing models of the heaviest elements.

Original languageEnglish
Article number092017
JournalJournal of Physics: Conference Series
Issue numberSECTION 9
Publication statusPublished - 2011

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