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Dynamical aspects of intermediate-energy nucleus-nucleus collisions

IV. Subthreshold pion production

  • Heavy Ions, Fission
  • Published:
Zeitschrift für Physik A Atomic Nuclei

Abstract

The production of pions in intermediate energy nucleus-nucleus collisions by incoherent nucleon-nucleon collisions is studied within a microscopic quantal phase-space approach. Employing free production rates for the elementary processN+N → π+X experimental data for inclusive pion yields are approximately reproduced from 20–150 MeV/u within the first collision approximation. These results indicate that cooperative phenomena — apart from the time-dependent mean field — seem to play a minor role for energetic particle production even at very low bombarding energy.

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References

  1. Benenson, W., Bertsch, G., Crawley, G.M., Kashy, E., Nolen, J.R., Bowman, H., Ingersoll, J.G., Rasmussen, J.O., Sullivan, J., Koike, M., Sasao, M., Peter, J., Ward, T.E.: Phys. Rev. Lett.43, 683 (1979); Phys. Rev. Lett.44, 54 (1980) (Errata)

    Google Scholar 

  2. Johansson, T., Gustafsson, H.A., Jakobsson, B., Kristiansson, R., Noren, B., Oskarsson, A., Carlen, L., Otterlund, I., Ryde, H., Julien, J., Guet, C., Bertholet, R., Maurel, M., Nifenecker, H., Perrin, P., Schussler, F., Tibell, G., Buenerd, M., Loiseaux, J.M., Martin, P., Bondorf, J.P., Nielsen, O.B., Karvinen, A.O.T., Mougey, J.: Phys. Rev. Lett.48, 732 (1982)

    Google Scholar 

  3. Nagamiya, S., Hamagaki, H., Hecking, P., Kadota, S., Lobard, R., Miake, Y., Moeller, E., Schnetzer, S., Steiner, H., Tanihata, I., Bohrmann, S., Knoll, J.: Phys. Rev. Lett.48, 1780 (1982)

    Google Scholar 

  4. Heckwolf, H., Grosse, E., Dabrowski, H., Klepper, O., Michel, C., Müller, W.F.J., Noll, H., Brendel, C., Rösch, W., Julien, W., Pappalardo, G.S., Bizard, G., Laville, J.L., Mueller, A.C., Peter, J.: Z. Phys. A — Atoms and Nuclei315, 243 (1984)

    Google Scholar 

  5. Noll, H., Grosse, E., Braun-Munzinger, P., Dabrowski, H., Heckwolf, H., Klepper, O., Michel, C., Müller, W.F.J., Stelzer, H., Brendel, C., Rösch, W.: Phys. Rev. Lett.52, 1284 (1984)

    Google Scholar 

  6. Braun-Munzinger, P., Paul, P., Ricken, L., Stachel, J., Zhang, P.H., Young, G.R., Obenshain, F.E., Grosse, E.: Phys. Rev. Lett.52, 255 (1984)

    Google Scholar 

  7. Chiavassa, E., Costa, S., Dellacasa, G., De Marco, N., Gallio, M., Musso, A., Aslanides, E., Fassnacht, P., Hibou, F., Bressani, T., Caria, M., Serci, S., Iazzi, F., Minetti, B.: Nucl. Phys. A422, 621 (1984)

    Google Scholar 

  8. Grimm, P., Grosse, E.: Prog. Part. Nucl. Phys.15, 339 (1985)

    Google Scholar 

  9. Grosse, E.: Nucl. Phys. A447, 611c (1985)

    Google Scholar 

  10. Michel, C., Grosse, E., Noll, H., Dabrowski, H., Heckwolf, H., Klepper, O., Müller, W.F.J., Stelzer, H., Brendel, C., Rösch, W.: Nucl. Instrum. Methods A243, 395 (1986)

    Google Scholar 

  11. Stachel, J., Braun-Munzinger, P., Freifelder, R.H., Paul, P., Sen, S., DeYoung, P., Zhang, P.H., Awes, T.C., Obenshain, F.E., Plasil, F., Young, G.R., Fox, R., Ronningen, R.: Phys. Rev. C33, 1420 (1986)

    Google Scholar 

  12. Miller, J., Bercovitz, J., Claesson, G., Krebs, G., Roche, G., Schroeder, L.S., Benenson, W., van der Pflicht, J., Winfield, J.S., Landaud, G., Gilot, J.F.: Phys. Rev. Lett.58, 2408 (1987)

    Google Scholar 

  13. McMillan, W.G., Teller, E.: Phys. Rev.72, 1 (1947)

    Google Scholar 

  14. Bertsch, G.F.: Phys. Rev. C15, 713 (1977)

    Google Scholar 

  15. Jakobsson, B., Bondorf, J.P., Fai, G.: Phys. Lett.82B, 35 (1979)

    Google Scholar 

  16. Jakobsson, B.: Phys. Scr. T5, 207 (1983)

    Google Scholar 

  17. Guet, C., Prakash, M.: Nucl. Phys. A428, 119c (1984)

    Google Scholar 

  18. Tohyama, M., Kaps, R., Masak, D., Mosel, U.: Phys. Lett.136B, 226 (1984)

    Google Scholar 

  19. Tohyama, M., Kaps, R., Masak, D., Mosel, U.: Nucl. Phys. A437, 739 (1985)

    Google Scholar 

  20. Tohyama, M., Kaps, R., Mosel, U.: Phys. Lett.169B, 313 (1986)

    Google Scholar 

  21. Tohyama, M., Mosel, U.: Nucl. Phys. A459, 711 (1986)

    Google Scholar 

  22. Cassing, W.: In: Phase space approach to nuclear dynamics. DiToro, M. (ed.), pp. 64–93. Singapore: World Scientific 1986

    Google Scholar 

  23. Cassing, W.: Habilitationsschrift, TH Darmstadt 1985, GSI Report 86–6

  24. Kaps, R., Cassing, W., Mosel, U., Tohyama, M.: Z. Phys. A — Atomic Nuclei326, 97 (1987)

    Google Scholar 

  25. Aichelin, J.: Phys. Lett.164B, 261 (1985)

    Google Scholar 

  26. Blann, M.: Phys. Rev. C32, 1231 (1985)

    Google Scholar 

  27. Shyam, R., Knoll, J.: Phys. Lett.136B, 221 (1984)

    Google Scholar 

  28. Shyam, R., Knoll, J.: Nucl. Phys. A426, 606 (1984)

    Google Scholar 

  29. Knoll, J.: J. Phys. (Paris) C4, 185 (1986)

    Google Scholar 

  30. Vasak, D., Müller, B., Greiner, W.: Phys. Scr.22, 25 (1980)

    Google Scholar 

  31. Vasak, D., Stöcker, H., Müller, B., Greiner, W.: Phys. Lett.93B, 243 (1980)

    Google Scholar 

  32. Vasak, D., Greiner, W., Müller, B., Stahl, T., Uhlig, M.: Nucl. Phys. A428, 291c (1984)

    Google Scholar 

  33. Klingenbeck, K., Dillig, M., Huber, M.: Phys. Rev. Lett.47, 1654 (1981)

    Google Scholar 

  34. Kajino, T., Toki, H., Kubo, K.: Phys. Rev. C35, 1370 (1987)

    Google Scholar 

  35. Pirner, H.J.: Phys. Rev. C22, 1962 (1980)

    Google Scholar 

  36. Hiller, B., Pirner, H.J.: Phys. Lett.109B, 338 (1982)

    Google Scholar 

  37. Townsend, L.W., Deutschman, P.A., Madigan, R.L., Norbury, J.W.: Nucl. Phys. A415, 520 (1984)

    Google Scholar 

  38. Prakash, M., Guet, C., Brown, G.E.: Nucl. Phys. A447, 625 c (1986)

    Google Scholar 

  39. Blin, A., Guet, C., Hiller, B.: Nucl. Phys. A454, 746 (1986)

    Google Scholar 

  40. Aichelin, J., Bertsch, G.F.: Phys. Lett.138B, 350 (1984)

    Google Scholar 

  41. Aichelin, J.: Phys. Rev. Lett.52, 2340 (1984)

    Google Scholar 

  42. Gale, C., Das Gupta, S.: Phys. Rev. C30, 414 (1984)

    Google Scholar 

  43. Prakash, M., Braun-Munzinger, P., Stachel, J.: Phys. Rev. C33, 937 (1986)

    Google Scholar 

  44. Bonasera, A., Di Toro, M., Grégoire, C.: Preprint MSUCL-607

  45. Cassing, W.: Z. Phys. A — Atomic Nuclei327, 87 (1987)

    Google Scholar 

  46. Cassing, W.: Z. Phys. A — Atomic Nuclei327, 447 (1987)

    Google Scholar 

  47. Cassing, W.: Z. Phys. A — Atomic Nuclei329, 471 (1988)

    Google Scholar 

  48. Cassing, W., Biro, T., Mosel, U., Tohyama, M.: Phys. Lett.181B, 217 (1986)

    Google Scholar 

  49. Rösch, W., Richter, A., Schrieder, G., Gentner, R., Keller, K., Lassen, L., Lücking, W., Schreck, R., Cassing, W., Gemmeke, H.: Phys. Lett. B197B, 19 (1987)

    Google Scholar 

  50. Hingmann, R., Kühn, W., Metag, V., Mühlhans, R., Novotny, R., Ruckelshausen, A., Cassing, W., Emling, H., Kulessa, R., Wollersheim, H.J., Haas, B., Vivien, J.P., Boullay, A., Delagrange, H., Doubre, H., Grégoire, C., Schutz, Y.: Phys. Rev. Lett.58, 759 (1987)

    Google Scholar 

  51. Frullani, S., Mougey, J.: Advances in nuclear physics. Negele, J.W., Vogt, E. (eds.), Vol. 14. New York, London: Plenum Press 1984

    Google Scholar 

  52. Cusson, R.Y., Smith, R.K., Maruhn, J.A., Phys. Rev. Lett.36, 1166 (1976); Cusson, R.Y., Maruhn, J.A, Meldner, A.W.: Phys. Rev. C18, 2589 (1978); Cusson, R.Y., Meldner, A.W.: Phys. Rev. Lett.42, 694 (1979)

    Google Scholar 

  53. Cassing, W.: Z. Phys. A — Atomic Nuclei326, 21 (1987)

    Google Scholar 

  54. Ver West, B.J., Arndt, R.A.: Phys. Rev. C25, 1979 (1982)

    Google Scholar 

  55. Chen, K., Fraenkel, Z., Friedländer, G., Grover, J.R., Miller, J.M., Shimamoto, Y.: Phys. Rev.166, 949 (1968)

    Google Scholar 

  56. Grosse, E., Grimm, P., Heckwolf, H., Müller, W.F.J., Noll, H., Oskarsson, A., Stelzer, H.: Europhys. Lett.2, 9 (1986)

    Google Scholar 

  57. Heckwolf, H.: GSI Report 86-3, p. 69

  58. Glauber, R.J.: Lectures on theoretical physics. Vol.1. New York: Interscience 1959

    Google Scholar 

  59. Hüfner, J., Schäfer, K., Schürmann, B.: Phys. Rev. C12, 1888 (1975)

    Google Scholar 

  60. Hecking, P.: Phys. Lett.103B, 401 (1981)

    Google Scholar 

  61. De Paoli, A.L., Niita, K., Bauer, W., Biro, T.S., Cassing, W., Mosel, U.: Preprint UGI-87-15

  62. Niita, K., De Paoli, A.L., Bauer, W., Biro, T.S., Cassing, W., Mosel, U.: Proceedings of the First Topical Meeting on Giant Resonance Excitation in Heavy-Ion Collisions. Legnaro, Italy, Sept. 21–25, 1987; (to appear in a special issue of Nucl. Phys. A)

  63. Grimm, P.: GSI Report 87-2

  64. Metag, V.: Private communication

  65. ter Haar, B., Malfliet, R.: Preprint KVI-651

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  1. Institut für Theoretische Physik, Universität Giessen, Federal Republic of Germany

    W. Cassing

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Supported by BMFT and GSI Darmstadt

The author acknowledges valuable discussions with G.F. Bertsch, P. Grimm, E. Grosse, H. Heckwolf, V. Metag and U. Mosel. Furthermore he likes to thank K. Niita for a critical reading of the manuscript.

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Cassing, W. Dynamical aspects of intermediate-energy nucleus-nucleus collisions. Z. Physik A - Atomic Nuclei 329, 487–495 (1988). https://doi.org/10.1007/BF01294353

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