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Nuclear excitation and prompt fission in muonic238U

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Zeitschrift für Physik A Hadrons and Nuclei

Abstract

A study of muonic238U has been performed in a combined (μ −,γ f) and (μ −,γγ) coincidence experiment to investigate the role of non-radiative transitions and their fission probabilities. An augmentation of the outer fission barrier ofΔE b =(0.6±0.1) MeV due to the presence of the muon is deduced. A significant contribution to the prompt fission yield not only results from the (2p→1s) and (3d→1s) non-radiative transitions, but also from other radiationless transitions. Specifically, the measured fission probabilities of the transitions (2p→1s), (3d→1s), and (3p→1s) are (1.5±0.4)%, (5.7±1.7)%, and (5.3±1.9)%, respectively.

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Author information

Author notes

  1. H. Hänscheid

    Present address: Klinik und Poliklinik für Nuklearmedizin, Universität Würzburg, W-8700, Würzburg, Federal Republic of Germany

  2. F. Risse

    Present address: Bayer AG, W-5090, Leverkusen, Federal Republic of Germany

  3. W. Schrieder

    Present address: Gesellschaft für Prozeßsteuerungs- und Informationssysteme mbH, W-8750, Aschaffenburg, Federal Republic of Germany

Authors and Affiliations

  1. ISKP, Universität Bonn, Nussallee 14-16, W-5300, Bonn 1, Federal Republic of Germany

    H. Hänscheid, P. David, F. Risse, Ch. Rösel & W. Schrieder

  2. NIKHEF-K, POB 41882, 1009, DB Amsterdam, The Netherlands

    J. Konijn, C. T. A. M. de Laat & A. Taal

  3. PSI, CH-5234, Villigen PSI, Switzerland

    C. Petitjean, H. W. Reist & L. M. Simons

  4. GSI, W-6100, Darmstadt 11, Federal Republic of Germany

    H. Folger

  5. Physics Laboratory, University of Utrecht, 3584, CC Utrecht, The Netherlands

    C. T. A. M. de Laat & A. Taal

  6. Institut de Physique, Université de Fribourg, CH-1700, Fribourg, Switzerland

    L. A. Schaller & L. Schellenberg

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  1. H. Hänscheid
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Hänscheid, H., David, P., Folger, H. et al. Nuclear excitation and prompt fission in muonic238U. Z. Physik A - Hadrons and Nuclei 342, 111–120 (1992). https://doi.org/10.1007/BF01294496

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  • DOI: https://doi.org/10.1007/BF01294496

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