Zeitschrift für Physik A Hadrons and Nuclei

, Volume 355, Issue 1, pp 61–68 | Cite as

Study of the out-of-plane emission of protons and light fragments in symmetric heavy-ion collisions

  • D. Brill
  • P. Beckerle
  • C. Bormann
  • E. Schwab
  • Y. Shin
  • R. Stock
  • H. Ströbele
  • P. Baltes
  • C. Müntz
  • H. Oeschler
  • C. Sturm
  • A. Wagner
  • R. Barth
  • M. Cieślak
  • M. Dębowski
  • E. Grosse
  • P. Koczoń
  • M. Mang
  • D. Miśkowiec
  • R. Schicker
  • P. Senger
  • B. Kohlmeyer
  • F. Pühlhofer
  • J. Speer
  • K. Völkel
  • W. Waluś
Article

Abstract

Midrapidity protons from209Bi+209Bi collisions were measured with the Kaon Spectrometer at SIS at incident energies of E Lab /A=400, 700 and 1000 MeV. Additionally, light fragments were analysed at 400 MeV. We have investigated the azimuthal emission pattern of the particles relative to the reaction plane as function of transverse momentum, bombarding energy and impact parameter. We observe an enhanced emission of particles perpendicular to the reaction plane at all bombarding energies. The ratio of the number of particles emitted out-of-plane/in-plane increases strongly with the particles transverse momentum. The anisotropy decreases with increasing beam energy. Composite particles show a much stronger effect than protons.

PACS

25.75.+r 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    R. Stock, Phys. Rep. 135, 259(1986).CrossRefADSGoogle Scholar
  2. 2.
    H. Stöcker and W. Greiner, Phys. Rep. 137, 277(1986).CrossRefADSGoogle Scholar
  3. 3.
    W. Cassing, V. Metag, U. Mosel and K. Niita, Phys. Rep. 188, 365(1986).Google Scholar
  4. 4.
    H. H. Gutbrod, K. H. Kampert, B. W. Kolb, A. M. Poskanzer, H. G. Ritter, H. R. Schmidt, Phys. Lett. 216B, 267(1989).ADSGoogle Scholar
  5. 5.
    M. Demoulins, D. L’Hote, J. P. Alard, J. Augerat, R. Babinet, N. Bastid, F. Brochard, C. Cavata, N. De Marco, P. Dupieux, H. Fanet, Z. Fodor, L. Fraysse, P. Gorodetzky, J. Gosset, T. Hayashino, M. C. Lemaire, A. Le Merdy, B. Lucas, J. Marroncle, G. Montarou, M. J. Parizet, J. Poitou, C. Racca, W. Schimmerling, Y. Terrien and O. Valette, Phys. Lett. B241, 476(1990).ADSGoogle Scholar
  6. 6.
    J. Gosset, M. Demoulins, R. Babinet, C. Cavata, H. Fanet, D. L’Hote, B. Lucas, J. Poitou, M. C. Lemaire, J. P. Alard, J. Augerat, N. Bastid, P. Charmensat, P. Dupieux, L. Fraysse, J. Marroncle, G. Montarou, M. J. Parizet, D. Qassoud, A. Rahmani, F. Brochard, P. Gorodetzky and C. Racca, Phys. Lett. B247, 233(1990).ADSGoogle Scholar
  7. 7.
    H. H. Gutbrod, K. H. Kampert, B. W. Kolb, A. M. Poskanzer, H. G. Ritter, R. Schicker, H. R. Schmidt, Phys. Rev. C42, 640(1990).ADSGoogle Scholar
  8. 8.
    Y. Leifels, T. Blaich, T. W. Elze, H. Emling, H. Freiesleben, K. Grimm, W. Henning, R. Holzmann, J. G. Keller, H. Klingler, J. V. Kratz, R. Kulessa, D. Lambrecht, S. Lange, E. Lubkiewicz, E. F. Moore, W. Prokopowicz, R. Schmidt, C. Schütter, H. Spies, K. Stelzer, J. Stroth, E. Wajda, W. Walus, M. Zinser, E. Zude, and the FOPI Collaboration, Phys. Rev. Lett. 71, 963(1993).CrossRefADSGoogle Scholar
  9. 9.
    D. Lambrecht, T. Blaich, T. W. Elze, H. Emling, H. Freiesleben, K. Grimm, W. Henning, R. Holzmann, J. G. Keller, H. Klingler, J. V. Kratz, R. Kulessa, S. Lange, Y. Leifels, E. Lubkiewicz, E. F. Moore, W. Prokopowicz, R. Schmidt, C. Schütter, H. Spies, K. Stelzer, J. Stroth, E. Wajda, W. Walus, M. Zinser, E. Zude, and the FOPI Collaboration, Z. Phys. A350, 115(1994).Google Scholar
  10. 10.
    A. Kugler, V. Wagner, M. Pachr, M. Sumbera, Yu. G. Sobolev, S. Hlavác, R. S. Simon, R. Lorencz, R. Wohlgemuth, Phys. Lett. B, 319(1994).Google Scholar
  11. 11.
    H. Stöcker, L. P. Csernai, G. Graebner, G. Buchwald, H. Kruse, R. Y. Cusson, J. A. Maruhn and W. Greiner, Phys. Rev. Lett. 52, 1594(1982).Google Scholar
  12. 12.
    Ch. Hartnack, M. Berenguer, A. Jahns, A. v. Keitz, R. Mattiello, A. Rosenhauer, J. Schaffner, Th. Schönfeld, H. Sorge, L. Winkelmann, H. Stöcker and W. Greiner, Nucl. Phys. A538, 53c(1992).Google Scholar
  13. 13.
    G. Welke, M. Prakash, T. T. S. Kuo, S. Das Gupta and C. Gale, Phys. Rev. C38,2101(1988).ADSGoogle Scholar
  14. 14.
    C. Hartnack, J. Aichelin, H. Stöcker, W. Greiner, Phys. Lett. B336, 131(1994).ADSGoogle Scholar
  15. 15.
    P. Senger, W. Ahner, P. Baltes, P. Beckerle, C. Bormann, D. Brill, M. Cieślak, E. Grosse, W. Henning, P. Koczoń, B. Kohlmeyer, W. Konrad, D. Miśkowiec, C. Müntz, H. Oeschler, H. Pöppl, W. Prokopowiecz, F. Pühlhofer, S. Sartorius, R. Schicker, B. Schlei, E. Schwab, Y. Shin, J. Speer, J. Stein, K. Stiebing, R. Stock, H. Ströbele, C. Sturm, K. Völkel, A. Wagner, W. Waluś, Nucl. Instr. Meth. A327, 393(1993).ADSGoogle Scholar
  16. 16.
    W. Ahner, P. Baltes, C. Bormann, D. Brill, R. Brockmann, M. Cieślak, E. Grosse, W. Henning, P. Koczoń, B. Kohlmeyer, W. Konrad, D. Miśkowiec, C. Müntz, H. Oeschler, H. Pöppl, W. Prokopowiecz, F. Pühlhofer, R. Renfordt, A. Sandoval, S. Sartorius, R. Schicker, E. Schwab, P. Senger, Y. Shin, J. Stein, K. Stiebing, R. Stock, H. Ströbele, K. Völkel, A. Wagner, W. Waluś, Z. Phys. A341, 123(1991).Google Scholar
  17. 17.
    D. Brill, W. Ahner, P. Baltes, R. Barth, C. Bormann, M. Cieślak, M. Dębowski, E. Grosse, W. Henning, P. Koczoń, B. Kohlmeyer, D. Miśkowiec, C. Müntz, H. Oeschler, H. Pöppl, F. Pühlhofer, S. Sartorius, R. Schicker, P. Senger, Y. Shin, J. Speer, J. Stein, K. Stiebing, R. Stock, H. Ströbele, K. Völkel, A. Wagner, W. Waluś, Phys. Rev. Lett.71, 336(1993).CrossRefADSGoogle Scholar
  18. 18.
    D. Miśkowiec, W. Ahner, R. Barth, M. Cieślak, M. Dębowski, E. Grosse, W. Henning, P. Koczoń, R. Schicker, E. Schwab, P. Senger, P. Baltes, C. Müntz, H. Oeschler, S. Sartorius, C. Sturm, A. Wagner, P. Beckerle, C. Bormann, D. Brill, Y. Shin, J. Stein, R. Stock, H. Ströbele, B. Kohlmeyer, H. Pöppl, F. Pühlhofer, J. Speer, K. Völkel, W. Waluś, Phys. Rev. Lett.72, 3650(1994).CrossRefADSGoogle Scholar
  19. 19.
    J. Gosset, H. H. Gutbrod, W. G. Meyer, A. M. Poskanzer, A. Sandoval, R. Stock and G. D. Westfall, Phys. Rev. C16, 629(1977).ADSGoogle Scholar
  20. 20.
    J. Speer et al., (to be published).Google Scholar
  21. 21.
    D. Brill, PhD Thesis, Universität Frankfurt/M.(1993), GSI report 93-36 (ISSN 0171-4546)Google Scholar
  22. 22.
    P. Danielewicz and G. Odyniec, Phys. Lett. 157B, 147(1985).ADSGoogle Scholar
  23. 23.
    H. A. Gustafsson, H. H. Gutbrod, B. Kolb, H. Löhner, B. Ludewigt, A. M. Poskanzer, T. Renner, H. Riedesel, H. G. Ritter, A. Warwick, F. Weik, and H. Wieman, Phys. Rev. Lett. 52, 1590(1984).CrossRefADSGoogle Scholar
  24. 24.
    P. Danielewicz, H. Ströbele, G. Odyniec, D. Bangert, R. Bock, R. Brockmann, J. W. Harris, H. G. Pugh, W. Rauch, R. E. Renfordt, A. Sandoval, D. Schall, L.S. Schroeder, and R. Stock, Phys. Rev. C38, 38(1988).Google Scholar
  25. 25.
    P. Danielewicz, Phys. Rev. C51, 716(1995).ADSGoogle Scholar
  26. 26.
    S. A. Bass, C. Hartnack, H. Stöcker, W. Greiner, Z. Phys. A352, 171(1995).Google Scholar
  27. 27.
    J. P. Bondorf, S. I. A. Garpman, and J. Zimanyi, Nucl. Phys. A296, 320(1978).ADSGoogle Scholar
  28. 28.
    P. J. Siemens and J. O. Rasmussen, Phys. Rev. Lett. 42, 880(1979).CrossRefADSGoogle Scholar
  29. 29.
    Proceedings of a NATO Advanced Study Institute on The Nuclear Equation of State, Peniscola, Spain, NATO ASI Series B: Physics 216B(1989)Google Scholar
  30. 30.
    K. H. Kampert, in Proceedings of the International Workshop on Gross Properties of Nuclei and Nuclear Excitation XVI, Hirschegg, Austria, 1988, edited by H. Feldmeier (GSI, ISSN 0720-8715,Darmstadt, Germany, 1988).Google Scholar
  31. 31.
    M. A. Lisa, S. Albergo, F. Bieser, F. P. Brady, Z. Caccia, D. A. Cebra, A. D. Chacon, J. L. Chance, Y. Choi, S. Costa, J. B. Elliott, M. L. Gilkes, J. A. Hauger, A. S. Hirsch, E. L. Hjort, A. Insolia, M. Justice, D. Keane, J. Kintner, H. S. Matis, M. McMahan, C. McParland, D. L. Olson, M. D. Partlan, N. T. Porile, R. Potenza, G. Rai, J. Rasmussen, H. G. Ritter, J. Romanski, J. L. Romero, G. V. Russo, R. Scharenberg, A. Scott, Y. Shao, B. K. Srivastava, T. J. M. Symons, M. Tincknell, C. Tuvé, S. Wang, P. Warren, G. D. Westfall, H. H. Wieman, and K. Wolf (EOS-collaboration), Phys. Rev. Lett. 75, 2664(1995).CrossRefADSGoogle Scholar

Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • D. Brill
    • 1
  • P. Beckerle
    • 1
  • C. Bormann
    • 1
  • E. Schwab
    • 1
  • Y. Shin
    • 1
  • R. Stock
    • 1
  • H. Ströbele
    • 1
  • P. Baltes
    • 2
  • C. Müntz
    • 2
  • H. Oeschler
    • 2
  • C. Sturm
    • 2
  • A. Wagner
    • 2
  • R. Barth
    • 3
  • M. Cieślak
    • 3
  • M. Dębowski
    • 3
  • E. Grosse
    • 3
  • P. Koczoń
    • 3
  • M. Mang
    • 3
  • D. Miśkowiec
    • 3
  • R. Schicker
    • 3
  • P. Senger
    • 3
  • B. Kohlmeyer
    • 4
  • F. Pühlhofer
    • 4
  • J. Speer
    • 4
  • K. Völkel
    • 4
  • W. Waluś
    • 5
  1. 1.Johann Wolfgang Goethe-UniversitätFrankfurt/MainGermany
  2. 2.Technische Hochschule DarmstadtDarmstadtGermany
  3. 3.Gesellschaft für SchwerionenforschungDarmstadtGermany
  4. 4.Philipps-UniversitätMarburgGermany
  5. 5.Jagiellonian UniversityKrakówGermany

Personalised recommendations