Fusion reaction 48Ca+249Bk leading to formation of the element Ts (Z=117)



Khuyagbaatar, J, Yakushev, A, Duellmann, Ch E, Ackermann, D, Andersson, L-L, Asai, M, Block, M, Boll, RA, Brand, H, Cox, DM
et al (show 62 more authors) (2019) Fusion reaction 48Ca+249Bk leading to formation of the element Ts (Z=117). PHYSICAL REVIEW C, 99 (5).

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Abstract

The heaviest currently known nuclei, which have up to 118 protons, have been produced in 48Ca induced reactions with actinide targets. Among them, the element tennessine (Ts), which has 117 protons, has been synthesized by fusing 48Ca with the radioactive target 249Bk, which has a half-life of 327 d. The experiment was performed at the gas-filled recoil separator TASCA. Two long and two short α decay chains were observed. The long chains were attributed to the decay of 294Ts. The possible origin of the short-decay chains is discussed in comparison with the known experimental data. They are found to fit with the decay chain patterns attributed to 293Ts. The present experimental results confirm the previous findings at the Dubna Gas-Filled Recoil Separator on the decay chains originating from the nuclei assigned to Ts.

Item Type: Article
Uncontrolled Keywords: Low & intermediate energy heavy-ion reactions, Nuclear structure & decays, A ≥ 220, Nuclear data analysis & compilation
Depositing User: Symplectic Admin
Date Deposited: 07 Jun 2019 08:02
Last Modified: 27 Nov 2020 10:42
DOI: 10.1103/PhysRevC.99.054306
Related URLs:
URI: http://livrepository.liverpool.ac.uk/id/eprint/3044710