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Experimental evidence for muonicX-rays from fission fragments

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Zeitschrift für Physik A Hadrons and Nuclei

Abstract

In the spectrum of muonic X-rays of238U measured in coincidence with prompt fission events a structure has been found which is attributed to 2p→1s transitions of the muon attached to heavy fragments. The intensityI s of this structure relative to the strengthI pf observed for prompt fission has been determined to beI s/I pf=(6.0± 2.1) %. Although the experimental significance for the appeareance of this phenomenon is weak, this is the first experimental indication for its occuxence.

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Author information

Author notes

  1. C. Rösel

    Present address: Heuft-Systemtechnik GmbH, W-5475, Burgbrohl, Germany

  2. H. Hänscheid

    Present address: Klinik und Poliklinik für Nuklearmedizin der Universität Würzburg, W-8700, Würzburg, Germany

  3. F. Risse

    Present address: Bayer AG, W-5090, Leverkusen, Germany

  4. W. Schrieder

    Present address: Gesellschaft für Proze\steuerungs- und Informationssysteme mbH, W-8750, Aschaffenburg, Germany

Authors and Affiliations

  1. ISKP, Universität Bonn, Nu\allee 14-16, W-5300, Bonn 1, Germany

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

  2. Institute of Physics, St. Petersburg State University, 198904, Petrodvorets, Russia

    F. F. Karpeshin

  3. NIKHEF-K, P.O. Box 4395, 1009, AJ Amsterdam, The Netherlands

    J. Konijn

  4. Physics Laboratory, University of Utrecht, P.O. Box 80000, 3508, TA Utrecht, The Netherlands

    C. T. A. M. de Laat & A. Taal

  5. Laboratory of Nuclear Problems, JINR, 141980, Dubna, Russia

    B. Sabirov

  6. Department of Physics, University of Fribourg, CH-1700, Fribourg, Switzerland

    L. A. Schaller & L. Schellenberg

Authors
  1. C. Rösel
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  2. F. F. Karpeshin
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  3. P. David
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  4. H. Hänscheid
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  5. J. Konijn
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  6. C. T. A. M. de Laat
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  7. H. Paganetti
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  8. F. Risse
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  9. B. Sabirov
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  10. L. A. Schaller
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  11. L. Schellenberg
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  12. W. Schrieder
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  13. A. Taal
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Additional information

We are indebted to the following institutes or organizations for financial support: Bundesministerium für Forschung und Technologie der Bundesrepublik Deutschland contract number 06BN271 (CR,PD,HH,FR,WS), Foundation for Fundamental Research on Matter (FOM) and the Netherlands Organization of the Advancement of Pure Research (NWO) (JK,CTAMdL,AT), the Swiss National Foundation (SNF) (LAS,LS), and the Heinrich-Hertz-Foundation (HH) (FFK,BS).

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Rösel, C., Karpeshin, F.F., David, P. et al. Experimental evidence for muonicX-rays from fission fragments. Z. Physik A - Hadrons and Nuclei 345, 425–426 (1993). https://doi.org/10.1007/BF01282904

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  • DOI: https://doi.org/10.1007/BF01282904

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