EPJ Web of Conferences (Oct 2011)

Multi-neutron transfer coupling in sub-barrier 32S + 90,96Zr fusion reactions

  • Wu Z.D.,
  • Xu X.X.,
  • Jia H.M.,
  • Yang F.,
  • Lin C.J.,
  • Zhang H.Q.,
  • Beck C.,
  • Richard A.,
  • Jia F.,
  • Zhang S.T.,
  • Liu Z.H.

DOI
https://doi.org/10.1051/epjconf/20111708005
Journal volume & issue
Vol. 17
p. 08005

Abstract

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The role of neutron transfers is investigated in the fusion process below the Coulomb barrier by analyzing 32S+90Zr and 32S+96Zr as benchmark reactions. A full coupled-channel calculation of the fusion excitation functions has been performed for both systems by using multi-neutron transfer coupling for the more neutronrich reaction. The enhancement of fusion cross sections for 32S+96Zr is well reproduced at sub-barrier energies by NTFus code calculations including the coupling of the neutron-transfer channels following the Zagrebaev semiclassical model. We found similar effects for 40Ca+90Zr and 40Ca+96Zr fusion excitation functions.