Evidence of complete fusion in the subbarrier 16O+ 238U reaction

K. Nishio, H. Ikezoe, M. Asai, K. Tsukada, S. Mitsuoka, K. Tsuruta, K. Satou, C. J. Lin, T. Ohsawa

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Abstract

Evaporation residue cross sections in the 16O+238U reaction were measured for the energy range from above-to extreme subbarrier. We used a He-gas-jet system to transport the fusion products, and the α decay of the evaporation residues was measured by using a rotating wheel system. The measured cross sections for 248,249,250Fm are reproduced by a statistical model calculation, for which partial cross sections are calculated by a coupled-channel model taking into account the prolate deformation of 238U. We conclude that complete fusion is the main process in the subbarrier energy region, and quasifission is not an important channel.

Original languageEnglish
Pages (from-to)1399-1404
Number of pages6
JournalPhysics of Atomic Nuclei
Volume69
Issue number8
DOIs
Publication statusPublished - Aug 1 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics

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    Nishio, K., Ikezoe, H., Asai, M., Tsukada, K., Mitsuoka, S., Tsuruta, K., Satou, K., Lin, C. J., & Ohsawa, T. (2006). Evidence of complete fusion in the subbarrier 16O+ 238U reaction. Physics of Atomic Nuclei, 69(8), 1399-1404. https://doi.org/10.1134/S1063778806080187