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Zeitschrift für Physik A Hadrons and Nuclei

, Volume 356, Issue 1, pp 49–54 | Cite as

Dynamical intermediate-mass fragment production in197Au+197Au collisions at energies ≤15 MeV/u

  • Th. Blaich
  • J. V. Kratz
  • R. Schmoll
  • K. Sümmerer
  • G. Wirth
Article

Abstract

We present radiochemical data on the production of intermediate-mass fragments (IMF, 11≤Z<≈25) in collisions of197Au+197Au at 9, 11, 13 and 15 MeV/u. We demonstrate that the IMFs are produced in two-step reactions: Highly excited heavy nuclei are formed in a binary deep-inelastic reaction, and the IMFs originate from fast mass-asymmetric sequential fission of these primary reaction products.

PACS

25.70.Ln 

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References

  1. 1.
    Kim, Y.D., de Souza, R.T., Bowman, D.R., Carlin, N., Gelbke, C.K., Gong, W.G., Lynch, W.G., Phair, L., Tsang, M.B., Zhu, F., Pratt, S.: Phys. Rev. Lett.67, 14 (1991)CrossRefADSGoogle Scholar
  2. 2.
    Sangster, T.C., Begemann-Blaich, M., Blaich, Th., Britt, H.C., Elmaani, A., Ajitanand, N.N., Namboodiri, M.N.: Phys. Rev.C47, R2457 (1993)Google Scholar
  3. 3.
    Loveland, W., Xu, Z., Casey, C., Aleklett, K., Liljenzin, J.O., Lee, D., Seaborg, G.T.: Phys. Rev.C38, 2094 (1988)ADSGoogle Scholar
  4. 4.
    Ogilvie, C.A., Adloff, J.C., Begemann-Blaich, M., Bouissou, P., Hubele, J., Imme, G., Kreutz, P., Kunde, G.J., Leray, S., Lindenstruth, V., Liu, Z., Lynen, U., Meijer, R.J., Milkau, U., Müller, W.F.J., Ngô, C., Pochodzalla, J., Raciti, G., Rudolf, G., Sann, H., Schüttauf, A., Seidel, W., Stuttge, L., Trautmann, W., Tucholski, A.: Phys. Rev. Lett.67, 1214 (1991)CrossRefADSGoogle Scholar
  5. 5.
    Pochodzalla, J., Möhlenkamp, T., Rubehn, A., Schüttauf, A., Wörner, A., Zude, E., Begemann-Blaich, M., Blaich, Th., Emling, H., Ferrero, A., Gross, C., Immé, G., Iori, I., Kunde, G.J., Kunze, W.D., Lindenstruth, V., Lynen, U., Moroni, A., Müller, W.F.J., Ocker, B., Raciti, G., Sann, H., Schwarz, C., Seidel, W., Serfling, V., Stroth, J., Trautmann, W., Trzcinski, A., Tucholski, A., Verde, G., Zwieglinski, B.: Phys. Rev. Lett.75, 1040 (1995)CrossRefADSGoogle Scholar
  6. 6.
    Petrovici, M., Herrmann, N., Legrand, I., Gobbi, A., Hildenbrand, K.D., Reisdorf, W., Buta, A., Freifelder, R., Jeong, S.C., Krämer, M., Moisa, D., Schüll, D., Simion, V., Sodan, U., Teh, K., Wessels, J.P., Wienold, T., Alard, J.P., Amouroux, V., Basrak, Z., Bastid, N., Belyaev, I.M., Berger, L., Blaich, Th., Boussange, S., Caplar, R., Cerruti, C., Cindro, N., Coffin, J.P., Donà, R., Dupieux, P., Erö, J., Fintz, P., Fodor, Z., Fraysse, L., Guillaume, G., Höbling, S., Houari, A., Jundt, F., Kecskemeti, J., Koncz, P., Korchagin, Y., Kotte, R., Kuhn, C., Ibnouzahir, M., Lebedev, A., Maguire, C., Manko, V., Mösner, J., Montarou, G., Montbel, I., Morel, P., Neubert, W., Pelte, D., Rami, F., Ramillien, V., Sadchikov, A., Seres, Z., Sikora, B., Smolyankin, S., Tezkratt, R., Trzaska, M., Vasiliev, M.A., Wagner, P., Wilhelmi, Z., Wohlfahrth, D., Zhilin, A.V.: Phys. Rev. Lett.74, 5001 (1995)CrossRefADSGoogle Scholar
  7. 7.
    Glässel, P., v. Harrach, D., Specht, H.J., Grodzins, L.: Z. Phys.A310, 189 (1983)Google Scholar
  8. 8.
    Stefanini, A.A., Casini, G., Maurenzig, P.R., Olmi, A., Charity, R.J., Freifelder, R., Gobbi, A., Herrmann, N., Hildenbrand, K.D., Petrovici, M., Rami, F., Stelzer, H., Wessels, J.P., Gnirs, M., Pelte, D., Galin, J., Guerreau, D., Jahnke, U., Péghaire, A., Adloff, J.C., Bilwes, B., Rudolf, G.: Z. Phys.A351, 167 (1995)Google Scholar
  9. 9.
    Töke, J., Lott, B., Baldwin, S.P., Quednau, B.M., Schröder, W.U., Sobotka, L.G., Barreto, J., Charity, R.J., Gallamore, L., Sarantites, D.G., Stracener, D.W., De Souza, R.T.: Progress Report 1994, DOE/ER/40414-7, p. 15Google Scholar
  10. 10.
    Lecolley, J.F., Stuttgé, L., Aboufirassi, M., Bilwes, B., Bougault, R., Brou, R., Cosmo, F., Colin, J., Durand, D., Galin, J., Genoux-Lubain, A., Guerreau, D., Horn, D., Jacquet, D., Laville, J.L., Lefebvres, F., Le Brun, C., Lopez, O., Louvel, M., Mahi, M., Meslin, C., Morjean, M., Péghaire, A., Rudolf, G., Scheibling, F., Steckmeyer, J.C., Tamain, B., Tomasevic, S.: Phys. Lett.B354, 202 (1995)ADSGoogle Scholar
  11. 11.
    Kratz, J.V., Büchle, W., Franz, G., Schädel, M., Warnecke, I., Wirth, G., Weis, M.: Nucl. Phys.A332, 477 (1979).ADSGoogle Scholar
  12. 12.
    Hubert, F., Fleury, A., Bimbot, R., Gardes, D.: Ann Phys.5S, 1 (1980)Google Scholar
  13. 13.
    Schröder, W.U., Birkelund, J.R., Huizenga, J.R., Wolf, K.L., Viola, V.E.: Phys. Rep.45, 301 (1978)CrossRefADSGoogle Scholar
  14. 14.
    Viola, V.E.: Nucl. DataA1, 391 (1966)Google Scholar
  15. 15.
    Albinski, J., Gobbi, A., Gralla, S., Hildenbrand, K.D., Herrmann, N., Kuzminski,J., Petrovici, M.: GSI Scientific Report 1985, p. 85Google Scholar
  16. 16.
    V. Harrach, D.: Habilitationsschrift, Universität Heidelberg, 1982Google Scholar
  17. 17.
    Schmoll, R.: Doctoral thesis, Universität Mainz, 1988, and GSI-report 88-15Google Scholar
  18. 18.
    Isozumi, Y.: Nucl. Instr. Mech.A235, 164 (1985).CrossRefADSGoogle Scholar
  19. 19.
    Schröder, W.U., Huizenga, J.R.: Nucl. Phys.A502, 473c (1989)Google Scholar
  20. 20.
    Porile, N.T., Dropesky, B.J., Williams, R.A.: Phys. Rev.C18, 2231 (1978)ADSGoogle Scholar
  21. 21.
    Kaufmann, S.B., Steinberg, E.P., Wilkins, B.D., Henderson, D.J.: Phys. Rev.C22, 1897 (1990)ADSGoogle Scholar
  22. 22.
    Kaufmann, S.B., Steinberg, E.P.: Phys. Rev.C22, 167 (1980)ADSGoogle Scholar

Copyright information

© Springer-Verlag 1997

Authors and Affiliations

  • Th. Blaich
    • 1
  • J. V. Kratz
    • 1
  • R. Schmoll
    • 1
  • K. Sümmerer
    • 2
  • G. Wirth
    • 2
  1. 1.Institut für KernchemieUniversität MainzMainzGermany
  2. 2.Gesellschaft für SchwerionenforschungDarmstadtGermany

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