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Search for elements 119 and 120

Khuyagbaatar, J.; Yakushev, A.; Dullmann, Ch.E.; Ackermann, D.; Andersson, L.-L; Asai, M.; Block, M.; Boll, R.A.; Brand, H.; Cox, D M; Dasgupta, Mahananda; Evers, Maurits; Hinde, David


A search for production of the superheavy elements with atomic numbers 119 and 120 was performed in the 50Ti + 249Bk and 50Ti + 249Cf fusion-evaporation reactions, respectively, at the gas-filled recoil separator TASCA at GSI Darmstadt, Germany. Over four months of irradiation, the 249Bk target partially decayed into 249Cf, which allowed for a simultaneous search for both elements. Neither was detected at cross-section sensitivity levels of 65 and 200 fb for the 50Ti + 249Bk and 50Ti + 249Cf...[Show more]

CollectionsANU Research Publications
Date published: 2020
Type: Journal article
Source: Physical Review C
DOI: 10.1103/PhysRevC.102.064602
Access Rights: Open Access


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