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Mechanisms Suppressing Superheavy Element Yields in Cold Fusion Reactions

Banerjee, kaushik; Hinde, David; Dasgupta, Mahananda; Simpson, Edward; Jeung, Dongyun; Simenel, Cedric; Swinton-Bland, Ben; Williams, Elizabeth; Carter, Ian; Cook, Kaitlin; David, H. M.; Düllmann, Ch E; Khuyagbaatar, J.; Kindler, B.; Lommel, B.; Edayillam, prasad; Sengupta, Chandrima; Smith, Jessica; Vo-Phuoc, Kirsten; Walshe, Joseph; Yakushev, A.


Superheavy elements are formed in fusion reactions which are hindered by fast nonequilibrium processes. To quantify these, mass-angle distributions and cross sections have been measured, at beam energies from below-barrier to 25% above, for the reactions of 48Ca,50Ti, and 54Cr with 208 Pb. Moving from 48Ca to 54Cr leads to a drastic fall in the symmetric fission yield, which is reflected in the measured mass-angle distribution by the presence of competing fast nonequilibrium deep inelastic and...[Show more]

CollectionsANU Research Publications
Date published: 2019-06-14
Type: Journal article
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.122.232503
Access Rights: Open Access


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