Low-lying positive parity states in 195Ir following double neutron capture

G. G. Colvin, H. G. Börner, P. Geltenbort, F. Hoyler, S. A. Kerr, K. Schreckenbach, J. A. Cizewski

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Multiple neutron capture reactions have been studied on 193Ir targets and gamma and electron spectroscopy performed. Double neutron capture events were separated from all others and a level scheme of 195Ir deduced. Gamma-ray energies and multipolarities are tabulated. A neutron capture cross-section for the reaction 194Ir(n, γ) of 1500±290b has been determined and the neutron binding energy of 195Ir measured to be 7231.92 (6) keV. The results are discussed in terms of perturbed spin(6) symmetry and U( 6 4) supersymmetry. A σ < σmax family of levels has clearly been identified.

Original languageEnglish (US)
Pages (from-to)240-264
Number of pages25
JournalNuclear Physics, Section A
Issue number2
StatePublished - Apr 6 1987
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


  • Nuclear reactions
  • Nuclear structure


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