Inelastic scattering and nucleon transfer in the system232Th+206Pb near the Coulomb barrier

G. Eckert, K. Stelzer, R. O. Nelson, Th W. Elze, Th Happ, H. J. Wollersheim, H. Emling, H. Grein, W. Henning, R. Kulessa, E. Lubkiewicz, Ch Lauterbach

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Nucleon transfer accompanied by Coulomb excitation was studied in the system206Pb+232Th at ELab=6.4 MeV/u. Particle-particle-gamma coincidence techniques were used to identify excited states of reaction products populated through inelastic scattering and nucleon transfer reactions. The mean excitation energy was measured by means of a γ-ray energy and multiplicity filter consisting of 6 NaI detectors. Large cross sections for one-neutron and two-neutron pick-up from232Th are observed. The impact-parameter dependence of the neutron transfer is analyzed in terms of semiclassical barrier penetration models. Using realistic neutron potentials with a diffuse surface, the experimental data are in accordance with the assumption of a "cold" transfer to states near the yrast line.

Original languageEnglish
Pages (from-to)267-278
Number of pages12
JournalZeitschrift für Physik A Hadrons and Nuclei
Issue number3
StatePublished - Sep 1992
Externally publishedYes


  • 24.10
  • 25.70.D+H


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