Stability and synthesis of superheavy elements: Fighting the battle against fission – example of 254No

Superheavy nuclei exist solely due to quantum shell effects, which create a pocket in the potential-energy surface of the nucleus, thus providing a barrier against spontaneous fission. Determining the height of the fission barrier and its angular-momentum dependence is important to quantify the role...

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Main Authors: Lopez-Martens, A, Henning, G, Khoo, T L, Seweryniak, D, Alcorta, M, Asai, M, Back, B B, Bertone, P, Boilley, D, Carpenter, M P, Chiara, C J, Chowdhury, P, Gall, B, Greenlees, P T, Gurdal, G, Hauschild, K, Heinz, A, Hoffman, C R, Janssens, RVF, Karpov, A V, Kay, B P, Kondev, F G, Lakshmi, S, Lauristen, T, Lister, C J, McCutchan, E A, Nair, C, Piot, J, Potterveld, D, Reiter, P, Rowley, N, Rogers, A M, Zhu, S
Format: Conference Proceeding
Language:English
Subjects:
Angular momentum
Barriers
Dependence
Nuclei
Shell stability
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Summary:Superheavy nuclei exist solely due to quantum shell effects, which create a pocket in the potential-energy surface of the nucleus, thus providing a barrier against spontaneous fission. Determining the height of the fission barrier and its angular-momentum dependence is important to quantify the role that microscopic shell corrections play in enhancing and extending the limits of nuclear stability. In this talk, the first measurement of a fission barrier in the very heavy nucleus 254No will be presented.
ISSN:2101-6275
2100-014X
DOI:10.1051/epjconf/201613103001