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Super- and Hyperdeformed isomeric states and long-lived superheavy elements

Abstract : The recent discoveries of the long-lived high spin super- and hyperdeformed isomeric states and their unusual radioactive decay properties are described. Based on their existence a consistent interpretation is given to the production of the long-lived superheavy element with Z = 112, via secondary reactions in CERN W targets, and to the low energy and very enhanced alpha-particle groups seen in various actinide fractions separated from the same W target. In addition, consistent interpretations are suggested for previously unexplained phenomena seen in nature. These are the Po halos, the low-energy enhanced 4.5 MeV alpha-particle group proposed to be due to an isotope of a superheavy element with Z = 108, and the giant halos.
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Submitted on : Monday, October 11, 2004 - 10:43:41 AM
Last modification on : Thursday, April 23, 2020 - 2:26:21 PM

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A. Marinov, S. Gelberg, D. Kolb, R. Brandt, R.V. Gentry, et al.. Super- and Hyperdeformed isomeric states and long-lived superheavy elements. 2nd International conference on the Chemistry and Physics of the Transactinide Elements, 2003, Napa, United States. ⟨in2p3-00023199⟩

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