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Experiment on the Synthesis of Element 113 in the Reaction<sup>209</sup>Bi(<sup>70</sup>Zn,n)<sup>278</sup>113
Journal of the Physical Society of Japan · 2004 · Vol. 73(10) · pp. 2593–2596
Kosuke Morita✉(RIKEN)K. Morimoto(RIKEN)D. Kaji(RIKEN)Takahiro Akiyama(RIKEN)Sin-ichi Goto(Niigata University)Hiromitsu Haba(RIKEN)E. Ideguchi(The University of Tokyo)R. Kanungo(RIKEN)Kenji Katori(RIKEN)H. Koura(Advanced Science Research Center)Hisaaki Kudo(Niigata University)T. Ohnishi(RIKEN)Akira Ozawa(University of Tsukuba)T. Suda(RIKEN)Keisuke Sueki(University of Tsukuba)HuShan Xu(Institute of Modern Physics)Takayuki Yamaguchi(Saitama University)Akira Yoneda(RIKEN)Atsushi Yoshida(RIKEN)Yu-Liang Zhao(Institute of High Energy Physics)
Abstract
The convincing candidate event of the isotope of the 113th element, 278 113, and its daughter nuclei, 274 111 and 270 Mt, were observed, for the first time, in the 209 Bi + 70 Zn reaction at a beam energy of 349.0 MeV with a total dose of 1.7 ×10 19 . Alpha decay energies and decay times of the candidates, 278 113, 274 111, and 270 Mt, were (11.68 ±0.04 MeV, 0.344 ms), (11.15 ±0.07 MeV, 9.26 ms), and (10.03 ±0.07 MeV, 7.16 ms), respectively. The production cross section of the isotope was deduced to be 55 +150 -45 fb (10 -39 cm 2 ).
Nuclear physics research studiesAstronomical and nuclear sciencesRadiopharmaceutical Chemistry and ApplicationsPhysicsIsotopeNuclear reactionNuclear physicsAtomic physicsBeam (structure)Alpha decayRadiochemistryChemistry
Funding
- Joint Institute for Nuclear Research
- RIKEN
Citations
531
FWCI
37.44
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14
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References
Nuclear properties according to the Thomas-Fermi model
Nuclear Physics A · 1996 · 583 citations
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