The European Physical Journal A

ISSN: 1434-6001 (printed version)
ISSN: 1434-601X (electronic version)

Table of Contents

Abstract Volume 2 Issue 4 (1998) pp 379-382

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

H. Ikezoe (1), T. Ikuta (1), S. Mitsuoka (1), Y. Nagame (1), I. Nishinaka (1), K. Tsukada (1), T. Ohtsuki (2), T. Kuzumaki (2), J. Lu (1)(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

Abstact: 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_-21 s and the production cross section is 180⁺²⁴⁰_-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 < A

Communicated by V. Metag

Article in PDF-Format (215 KB)

Online publication: August 10, 1998
LINK Helpdesk
© Springer-Verlag Berlin Heidelberg 1998