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Pairing effects in nucleon transfer reactions in the system144Sm+88Sr at 4.7 MeV/u

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Zeitschrift für Physik A Atomic Nuclei

Abstract

Proton and neutron transfer populating low-lying states have been studied in the system144Sm+88Sr at an energy below the Coulomb barrier. The experimental cross sections for the single proton transfer are well reproduced by DWBA-calculations using spectroscopic information from light ion reactions. The two-proton transfer appears enhanced relative to the uncorrelated sequential transfer of single protons. The same holds for the transfer of proton pairs, the enhancement is kept for the second pair. This is interpreted as a supercurrent between two superfluid nuclear proton-pair wave functions: more mass and charge is transported per time unit in pairs than by single nucleons. Neutron transfer is observed with large cross sections and is found to contribute to the energy loss observed in the transfer reactions. For mixed proton-neutron transfers the sequential nature of the transfer reactions is established in a similar way as for the two-proton and two-neutron transfer; in the latter case no enhancement is observed.

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References

  1. Chiodi, I., Lunardi, S., Morando, M., Signorini, C., Fortuna, G., Starzecki, W., Stefanini, A.M., Korschinek, G., Morinaga, H., Nolte, E., Schollmeier, W.: Nuovo Cimento33, 159 (1982)

    Google Scholar 

  2. Rehm, K.E., Kovar, D.G., Kutschera, W., Paul, M., Stephans, G.S.F., Yntema, J.L.: Phys. Rev. Lett.51, 1426 (1983)

    Article  Google Scholar 

  3. Oertzen, W. von, Bohlen, H.G., Gebauer, B., Künkel, R., Pühlhofer, F., Schüll, D.: Z. Phys. A — Atomic Nuclei326, 463 (1987)

    Article  Google Scholar 

  4. Künkel, R., Oertzen, W. von, Bohlen, H.G., Gebauer, B., Bösser, H.A., Kohlmeyer, B., Pühlhofer, F., Schüll, D.: Phys. Lett.208B, 355 (1988)

    Google Scholar 

  5. van den Berg, A.M. et al.: Phys. Rev. C37, 178 (1988)

    Google Scholar 

  6. Betts, R.R.: International Symposium on Heavy-Ion Reaction Dynamics, Hitachi, Japan August 1–3, 1988

  7. Goldanski, V.I., Larkin, A.I.: Sov. Phys. JETP26, 617 (1968)

    Google Scholar 

  8. Kleber, M., Schmidt, H.: Z. Phys. A — Atoms and Nuclei245, 68 (1971)

    Google Scholar 

  9. Weiss, H.: Phys. Rev. C19, 834 (1979)

    Google Scholar 

  10. Josephson, B.D.: Phys. Lett.1, 251 (1962)

    Article  Google Scholar 

  11. Oertzen, W. von, Bohlen, H.G., Gamp, A., Gebauer, B., Busch, F., Schüll, D.: Z. Phys. A — Atomic Nuclei313, 189 (1983)

    Article  Google Scholar 

  12. Künkel, R.: Thesis 1987, Freie Univ. Berlin, in: GSI-Report 21, (1987)

  13. Siekmann, H., Gebauer, B., Bohlen, H.G., Kluge, H., Oertzen, W. von, Fröbrich, P., Strack, B., Hildenbrand, K.D., Sann, H., Lynen, U.: Z. Phys. A — Atoms and Nuclei307, 113 (1982)

    Article  Google Scholar 

  14. DWBA-Code PROLEMY by M.H. Macfarlane and S.C. Pieper, Argonne National Laboratory 1978

  15. Alder, K., Winther, A.: Electromagnetic excitation. Amsterdam: North-Holland 1975

    Google Scholar 

  16. Bass, R.: Nuclear reactions with heavy ions. Heidelberg, New York: Springer 1980

    Google Scholar 

  17. Goldfarb, L.J.B., Oertzen, W. von: In: Heavy ion collisions. Bock, R. (ed.), Vol. 1, p. 216. Amsterdam: North-Holland 1979

    Google Scholar 

  18. Buttle, P.J.A., Goldfarb, L.J.B.: Nucl. Phys. A115, 461 (1968)

    Google Scholar 

  19. Broglia, R.A., Pollarolo, G., Winther, A.: Nucl. Phys. A361, 307 (1981)

    Google Scholar 

  20. Berg, van den, A.M., Rehm, K.E., Kovar, D.G., Kutschera, W., Stephans, G.S.F.: Phys. Lett.194, B334 (1987)

    Article  Google Scholar 

  21. Buttle, P.J.A., Goldfarb, L.J.B.: Nucl. Phys. A176, 299 (1971)

    Google Scholar 

  22. Hoath, S.D. et al.: Phys. Lett.154B, 33 (1985)

    Google Scholar 

  23. Oertzen, W. von, Homeyer, H., Harvey, B.G., Hendrie, D., Kovar, D.: Z. Phys. A — Atoms and Nuclei279, 357 (1976)

    Article  Google Scholar 

  24. Tamura, T., Udagawa, T., Mermaz, M.: Phys. Rep.65C, 346 (1980)

    Google Scholar 

  25. Vineyard, M.F. et al.: Phys. Rev. C33, 1325 (1986)

    Google Scholar 

  26. Nuclear Data Sheets Vol.16, 445 (1975)

  27. Nuclear Data Sheets Vol.25, 603 (1978)

  28. Brosa, U., Gross, D.H.E.: Z. Phys. A — Atoms and Nuclei298, 91 (1980)

    Article  Google Scholar 

  29. Blachot, J. et al.: Brookhaven Meeting on Yields and Decay Data of Fission Product Nuclides, Oct. 1983

  30. Mariolopoulos, G. et al.: Nucl. Phys. A361, 213 (1981)

    Google Scholar 

  31. Fröbrich, P.: Phys. Lett.37B, 338 (1971)

    Google Scholar 

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Author notes

  1. R. Künkel

    Present address: Gesellschaft für Schwerionenforschung, Federal Republic of Germany

Authors and Affiliations

  1. Hahn-Meitner-Institut, Berlin, Federal Republic of Germany

    R. Künkel, W. von Oertzen, H. G. Bohlen & B. Gebauer

  2. Fachbereich Physik der Universität Marburg, Federal Republic of Germany

    H. A. Bösser, B. Kohlmeyer, J. Speer & F. Pühlhofer

  3. Gesellschaft für Schwerionenforschung, Federal Republic of Germany

    D. Schüll

  4. Fachbereich Physik, Freie Universität Berlin, D-1000, Berlin 33, Germany

    W. von Oertzen

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  1. R. Künkel
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  2. W. von Oertzen
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  3. H. G. Bohlen
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  4. B. Gebauer
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  5. H. A. Bösser
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  6. B. Kohlmeyer
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  7. J. Speer
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  8. F. Pühlhofer
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  9. D. Schüll
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Additional information

The authors are indebted to GSI, in particular to Prof. R. Bock for the continuous support during this project.

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Künkel, R., von Oertzen, W., Bohlen, H.G. et al. Pairing effects in nucleon transfer reactions in the system144Sm+88Sr at 4.7 MeV/u. Z. Physik A - Atomic Nuclei 336, 71–89 (1990). https://doi.org/10.1007/BF01904165

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  • DOI: https://doi.org/10.1007/BF01904165

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