EPJ Web of Conferences (Oct 2011)

Study of nuclear structure influencing fusion reactions

  • Mitsuoka S.,
  • Makii H.,
  • Lommel B.,
  • Kindler B.,
  • Ikezoe H.,
  • Hofmann S.,
  • Heβberger F.P.,
  • Heinz S.,
  • Block M.,
  • Ackermann D.,
  • Nishio K.,
  • Khuyagbaatar J.,
  • Nishinaka I.,
  • Wakabayashi Y.,
  • Yan S.

DOI
https://doi.org/10.1051/epjconf/20111705003
Journal volume & issue
Vol. 17
p. 05003

Abstract

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The influence of the nuclear structure of projectile and target nuclei on the capture cross-sections was investigated in the fusion reactions 34S+204,206,208Pb and 36S+204,206,208Pb. Capture cross-sections were deduced from the fission fragments measured with multi-wire proportional counters. Significantly enhanced capture-fission cross-sections were observed for the 34S induced reactions compared to 36S at beam energies below the interaction barriers. The experimental results were compared to a coupled-channel calculation. The enhancement was explained by strong couplings to vibrational states of the 34S with 204,206,208Pb. The capture and evaporation residue cross-sections of 34S+208Pb and 36S+206Pb reactions which lead to the same compound nucleus 242Cf are compared and discussed.