In-beam γ-ray spectroscopy above Sn100 using the new technique of recoil decay tagging

E.S. Paul, P.J. Woods, T. Davinson, R.D. Page, P.J. Sellin, C.W. Beausang, R.M. Clark, R.A. Cunningham, S.A. Forbes, D.B. Fossan, A. Gizon, J. Gizon, K. Hauschild, I.M. Hibbert, A.N. James, D.R. Lafosse, I. Lazarus, H. Schnare, J. Simpson, R. WadsworthM.P. Waring

Research output: Contribution to journalArticlepeer-review

Abstract

A novel method of selecting γ-ray transitions in heavy nuclei (A>100) at the proton drip-line has been attempted. The characteristic charged-particle radioactivity of these nuclei (alpha decay, ground-state proton decay, and β-delayed proton emission) has been used to tag γ-ray transitions recorded by the highly efficient Eurogam spectrometer. The Ni58+54Fe and Ni58+58Ni fusion-evaporation reactions, at a beam energy of 240 MeV, have been used to populate specific states of these neutron-deficient nuclei and results are presented for Te108,109, I109, and Xe113, where γ-ray transitions have been identified. In the case of I109, this represents the first observation of γ-rays from a ground-state proton emitter.
Original languageEnglish
Pages (from-to)78-87
Number of pages10
JournalPhysical Review C
Volume51
Issue number1
DOIs
Publication statusPublished - 1 Jan 1995

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