Discovery of the two-proton decay of 45Fe

M. Pfützner, B. Blank, J. Giovinazzo, E. Badura, C. Bingham, C. Borcea, B. A. Brown, M. Chartier, S. Czajkowski, F. De Oliveira Santos, A. Fleury, H. Geissel, L. V. Grigorenko, R. Grzywacz, M. Hellström, Z. Janas, J. Kurcewicz, A. S. Lalleman, M. Lewitowicz, M. J. Lopez JimenezV. Maslov, C. Mazzocchi, I. Mukha, G. Münzenberg, C. Plettner, M. S. Pravikoff, E. Roeckl, K. P. Rykaczewski, K. Schmidt, R. S. Simon, M. Stanoiu, J. C. Thomas

    Research output: Contribution to journalConference articlepeer-review

    3 Scopus citations

    Abstract

    In experiments performed at the GSI Fragment Separator and at the GANIL SISSI-LISE3 facility the decay of 45Fe has been investigated. Implantation events of 45Fe ions, stopped in silicon telescopes, were correlated with radioactive decay events. The decay energy spectra exhibit a peak of an average energy of (1.14 ± 0.05) MeV. This observation, together with the non-observation of coincident γ or β events, represent clear evidence for the two-proton ground state decay of 45Fe. The average half-life of 45Fe, deduced from both experiments, is T1/2 = 3.8-0.8+2.0 ms.

    Original languageEnglish
    Pages (from-to)2363-2371
    Number of pages9
    JournalActa Physica Polonica B
    Volume34
    Issue number4
    StatePublished - Apr 2003
    EventXXXVII Zakopane School Of Physics; Trends In Nuclear Physics - Zakopane, Poland
    Duration: Sep 3 2002Sep 10 2002

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