Experiments on synthesis of the heaviest elements at RIKEN

K. Morimoto, K. Morita, D. Kaji, A. Yoneda, H. Haba, T. Akiyama, N. Sato, S. Goto, E. Ideguchi, K. Katori, H. Kikunaga, H. Koura, H. Kudo, T. Ohnishi, A. Ozawa, T. Suda, K. Sueki, F. Tokanai, T. Yamaguchi, A. Yoshida

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In the Institute of Physical and Chemical Research (RIKEN), using high intensity heavy ion beams from the RIKEN Linear Accelerator, productions and decays of isotopes of the heaviest elements have been investigated by using the gas-filled recoil separator, GARIS. The isotopes studied were 265Hs, 271Ds, 272Rg, 277112, and 278113, respectively. Based on the observed decay chains consisting of consecutive alpha decays connected to the previously known alpha decays or spontaneous fissions, assignments of the initially produced isotopes were done. Our data with the atomic number from 108 to 112, agree well with the data previously taken. The production cross section of the isotope 278113 of the 113th element have reached around 32 fb which shows the simple decrease of the cross section with the increase of the atomic number. The isotopes were produced, for the first time in the 1n evaporation channel from heavy-ion induced fusion reaction.

Original languageEnglish
Title of host publicationFusion06
Subtitle of host publicationReaction Mechanisms and Nuclear Structure at the Coulomb Barrier
Number of pages6
Publication statusPublished - 2006
Externally publishedYes
EventFUSION06: Reaction Mechanisms and Nuclear Structure at the Coulomb Barrier - San Servolo, Venezia, Italy
Duration: Mar 19 2006Mar 23 2006

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


OtherFUSION06: Reaction Mechanisms and Nuclear Structure at the Coulomb Barrier
CitySan Servolo, Venezia

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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