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Enhanced electron screening in d(d,p)t for deuterated metals

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Abstract.

The electron screening effect in the d(d,p)t reaction has been studied for deuterated metals, insulators, and semiconductors, i.e. 58 samples in total. As compared to measurements performed with a gaseous D2 target, a large effect has been observed in most metals, while a small (gaseous) effect is found, e.g., for the insulators, semiconductors, and lanthanides. The periodic table provides the ordering of the observed small and large effects in the samples. An explanation of the large effects in metals is possibly provided by the classical plasma screening of Debye applied to the quasi-free metallic electrons. The data also provide information on the solubility of hydrogen in the samples.

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Authors and Affiliations

  1. Institut für Physik mit Ionenstrahlen, Ruhr-Universität Bochum, Bochum, Germany

    F. Raiola, L. Gang, C. Bonomo, H. W. Becker, C. Rolfs & F. Strieder

  2. Department of Nuclear Physics, China Institute of Atomic Energy, Beijing, PRC

    L. Gang

  3. Atomki, Debrecen, Hungary

    G. Gyürky, Z. Fülöp & E. Somorjai

  4. School of Physics, University of Edinburgh, Edinburgh, UK

    M. Aliotta

  5. Dipartimento di Fisica, Universitá di Milano and INFN, Milano, Italy

    R. Bonetti

  6. INFN, Padova, Italy

    C. Broggini

  7. Dipartimento di Scienze Fisiche, Universitá Federico II and INFN, Napoli, Italy

    L. Gialanella, V. Roca & M. Romano

  8. Dipartimento di Fisica, Universitá di Genova and INFN, Genova, Italy

    P. Corvisiero & P. Prati

  9. Dipartimento di Scienze Ambientali, Seconda Universitá di Napoli, Caserta, Italy

    A. D’Onofrio & F. Terrasi

  10. Laboratori Nazionali del Gran Sasso dell’INFN, Assergi, Italy

    M. Junker

  11. Dipartimento di Fisica Sperimentale, Universitá di Torino and INFN, Torino, Italy

    G. Gervino

  12. Dipartimento di Fisica, Universitá di Ferrara and INFN, Ferrara, Italy

    G. Fiorentini

  13. Institute of Physics and Astronomy, University of Aarhus, Aarhus, Denmark

    K. Langanke

  14. Institut für Plasmaphysik, Ruhr-Universität Bochum, Bochum, Germany

    J. Winter

Authors
  1. F. Raiola
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  2. L. Gang
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  3. C. Bonomo
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  4. G. Gyürky
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  5. M. Aliotta
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  6. H. W. Becker
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  7. R. Bonetti
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  8. C. Broggini
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  9. P. Corvisiero
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  10. A. D’Onofrio
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  11. Z. Fülöp
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  12. G. Gervino
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  13. L. Gialanella
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  14. M. Junker
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  15. P. Prati
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  16. V. Roca
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  17. C. Rolfs
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  18. M. Romano
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  19. E. Somorjai
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  20. F. Strieder
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  21. F. Terrasi
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  22. G. Fiorentini
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  23. K. Langanke
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  24. J. Winter
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Corresponding author

Correspondence to C. Rolfs.

Additional information

Communicated by D. Schwalm

Received: 25 July 2003, Revised: 15 September 2003, Published online: 23 December 2003

PACS:

25.10. + s Nuclear reactions involving few-nucleon systems - 25.45.-z 2 H-induced reactions - 95.30.-k Fundamental aspects of astrophysics

For the LUNA Collaboration; supported in part by BMBF (06BO812 and 05CL1PC1/1), GSI (Bo-Rol), DFG (Ro429/31-1 and 436Ung113), OTKA (T034259, T042733, F043408), and Dynamitron-Tandem-Laboratorium Bochum.

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Raiola, F., Gang, L., Bonomo, C. et al. Enhanced electron screening in d(d,p)t for deuterated metals. Eur. Phys. J. A 19, 283–287 (2004). https://doi.org/10.1140/epja/i2003-10125-0

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  • DOI: https://doi.org/10.1140/epja/i2003-10125-0

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