Strong two-step contributions in direct allowed two-nucleon transfers

W. W. Daehnick, M. J. Spisak, J. R. Comfort, H. Hafner, H. H. Duhm

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


The h92g92 multiplet in Bi210 was populated by Pb208(α,a <FOR VERIFICATION>d) in experiments at 33 and 48 MeV. The strong favoring of the five unnatural-parity states of the multiplet disagrees with one-step transfer distorted-wave Born-approximation predictions. Coupled-reaction-channels calculations explain this effect as interference of direct np transfer and successive stripping amplitudes of comparable magnitude. This holds for weak (low-spin) and strong (high-spin) members of the multiplet.

Original languageEnglish (US)
Pages (from-to)639-642
Number of pages4
JournalPhysical Review Letters
Issue number9
StatePublished - 1978
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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