2018 Impact factor 2.481
Hadrons and Nuclei
Eur. Phys. J. A 2, 379-382

First evidence for a new spontaneous fission decay produced in the reaction 30Si + 238U

H. Ikezoe1 - T. Ikuta1 - S. Mitsuoka1 - Y. Nagame1 - I. Nishinaka1 - K. Tsukada1 - T. Ohtsuki2 - T. Kuzumaki2 - J. Lu1,3

1 Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki-ken, 319-11 Japan
2 Laboratory of Nuclear Science, Tohoku University, Mikamine, Taihaku-ku, Sendai 982, Japan
3 Institute of Modern Physics, Chinese Academy of Sciences, 73000 Lanzhou, China

Received: 13 March 1998 / Revised version: 4 May 1998 Communicated by V. Metag

Abstract
The first evidence for a new spontaneous fission decay has been observed in the evaporation residues for the reaction 30Si + 238U at the bombarding energy of 158 MeV. The measured half-life is $54 {+98 \atop -21}$ s and the production cross section is $180 {+240 \atop -120}$ pb. The observed spontaneous fission decay is a possible candidate for the spontaneous fission decay of 264Sg or 263Db after the $\beta$-decay of 263Sg.

PACS
23.90.+w Other topics in radioactive decay and in-beam spectroscopy - 25.70.-Z Low and intermediate energy heavy ion reactions - 27.90.+b $220 \le A$


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