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Relativistic effects in heavy-ion collisions at SIS energies

  • Hadron Ion Physics
  • Published:
Zeitschrift für Physik A Hadrons and Nuclei

Abstract

The covariant and non-covariant Quantum Molecular Dynamics models are applied to investigate possible relativistic effects in heavy ion collisions at SIS energies. These relativistic effects which arise due to the full covariant treatment of the dynamics are studied at bombarding energiesE lab=50, 250, 500, 750, 1000, 1250, 1500, 1750 and 2000 MeV/nucl. A wide range of the impact parameter fromb=0 fm tob=10 fm is also considsered. In the present study, five systems12C-12C,16O-16O,20Ne-20Ne,28Si-28Si and40Ca-40Ca are investigated. The full covariant treatment at low energies shows quite good agreement with the corresponding non-covariant whereas at higher energies it shows less stopping and hence less thermal equilibrium as compared to the non-covariant approach. The collisions dynamics is less affected. The density using RQMD rises and drops faster than with QMD. The relativistic effects show some influence on the resonance matter production. Overall, the relativistic effects at SIS energies (≦2000 MeV/nucl.) are less significant.

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References

  1. Khoa, D.T., Ohtsuka, N., Matin, M.A., Faessler, A., Huang, S.W., Lehmann, E., Puri, R.K.: Nucl. Phys. A548, 102 (1992)

    Google Scholar 

  2. Jänicke, J., Aichelin, J., Ohtsuka, N., Linden, R., Faessler, A.: Nucl. Phys. A536, 201 (1992)

    Google Scholar 

  3. Molitoris, J.J., Stöcker, H.: Phys. Lett. B162, 47 (1985)

    Google Scholar 

  4. Puri, R.K., Ohtsuka, N., Lehmann, E., Faessler, A., Khoa, D.T., Matin, M.A., Batko, G., Huang, S.W.: GSI Scientific Report 1992, p. 126

  5. Puri, R.K., Ohtsuka, N., Lehmann, E., Faessler, A., Matin, M.A., Khoa, D.T., Batko, G., Huang, S.W.: Nucl. Phys. A (in press)

  6. Puri, R.K., Ohtsuka, N., Lehmann, E., Faessler, A., Huang, S.W.: GSI Scientific Report 1993, p. 92

  7. Bertsch, G.F., Das Gupta, S.: Phys. Rep.160, 189 (1988)

    Google Scholar 

  8. Blättel, B., Koch, V., Cassing, W., Mosel, U.: Phys. Rev. C38, 1767 (1988); Ko, C.M., Li, Q., Wang, R.: Phys. Rev. Lett.59, 1084 (1987); Fuchs, C., Sehn, L., Wolter, H.H.: Nucl. Phys. A545, 151c (1992)

    Google Scholar 

  9. Blättel, B., Koch, V., Mosel, U.: Rep. Prog. Phys.56, 1 (1993) and references therein

    Google Scholar 

  10. Cassing, W., Metag, V., Mosel, U., Niita, K.: Phys. Rep.188, 363 (1990)

    Google Scholar 

  11. Ehehalt, W., Cassing, W., Engel, A., Mosel, U., Wolf, G.: Phys. Rev. C47, R2467 (1993)

    Google Scholar 

  12. Batko, G., Randrup, J., Vetter, T.: Nucl. Phys. A536, 786 (1992)

    Google Scholar 

  13. Aichelin, J.: Phys. Rep.202, 233 (1991)

    Google Scholar 

  14. Aichelin, J., Stöcker, H.: Phys. Lett. B176, 14 (1986)

    Google Scholar 

  15. Jänicke, J., Aichelin, J.: Nucl. Phys. A547, 542 (1992)

    Google Scholar 

  16. Hartnack, C.: GSI Report Nr. GSI-93-05 (1993)

  17. Puri, R.K., Huang, S.W., Matin, M.A., Lehmann, E., Khoa, D.T., Lotfy, Y., Faessler, A.: Prof. Int. Workshop “Gross Properties of Nuclei and Nuclear Excitations XX”, Hirschegg (Austria) 1992. Feldmeier, H. (ed.), p. 273

  18. Berenguer, M., Hartnack, C., Peilert, G., Stöcker, H., Greiner, W., Aichelin, J., Rosenhauer, A.: J. Phys. G18, 655 (1992)

    Google Scholar 

  19. Lehmann, E., Puri, R.K., Faessler, A., Maruyama, T., Li, G.Q., Ohtsuka. N., Huang, S.W., Khoa, D.T., Matin, M.A.: Prog. Part. Nucl. Phys.30, 219 (1993)

    Google Scholar 

  20. Lehmann, E., Puri, R.K., Faessler, A., Batko, G., Huang, S.W.: (Submitted to Nucl. Phys.)

  21. Puri, R.K., Lehmann, E., Faessler, A., Huang, S.W.: (submitted to Phys. Letts. B)

  22. Sorge, H., Stöcker, H., Greiner, W.: Ann. Phys. (NY)192, 266 (1989)

    Google Scholar 

  23. Maruyama, T., Huang, S.W., Ohtsuka, N., Li, G.Q., Faessler, A., Aichelin, J.: Nucl. Phys. A534, 720 (1991)

    Google Scholar 

  24. Cugnon, J., Mizutani, T., Vandermeulen, J.: Nucl. Phys. A352, 505 (1981); Aichelin, J.: Private communication

    Google Scholar 

  25. Mosel, U., Metag, V.: Phys. Bl.49, 426 (1993)

    Google Scholar 

  26. Mina, A.N., Puri, R.K., Lehmann, E., Faessler, A., Huang, S.W.: GSI Scientific Report 1993, p. 96

  27. Bass, S.A., Hoffmann, M., Hartnack, C., Stöcker, H., Greiner, W.: GSI Preprint 94-4

  28. Spieles, C., Jahns, A., Sorge, H., Stöcker, H., Greiner, W.: Mod. Phys. Lett. A27, 2547 (1993)

    Google Scholar 

  29. Teis, S., Cassing, W., Maruyama, T., Mosel, U.: GSI Scientific Report 1992, p. 133

  30. Batko, G., Faessler, A., Huang, S.W., Lehmann, E., Puri, R.K.: J. Phys. G20, 461 (1994)

    Google Scholar 

  31. Huang, S.W., Faessler, A., Li, G.Q., Puri, R.K., Lehmann, E., Khoa, D.T., Matin, M.A.: Phys. Lett. B298, 41 (1993)

    Google Scholar 

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Authors and Affiliations

  1. Institut für Theoretische Physik, Universität Tübingen, Auf der Morgenstelle 14, D-72076, Tübingen, Germany

    Rajeev K. Puri, E. Lehmann, Amand Faessler & S. W. Huang

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  1. Rajeev K. Puri
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  2. E. Lehmann
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  3. Amand Faessler
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  4. S. W. Huang
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Additional information

Supported by the GSI-Darmstadt and the BMFT under contract 06TÜ736

The package UNISCO contains fully integrated the QMD code based on the latest code of Jörg Aichelin and coworkers and our RQMD code. The authors are thankful to Prof. Jörg Aichelin for providing us with his new QMD code.

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Puri, R.K., Lehmann, E., Faessler, A. et al. Relativistic effects in heavy-ion collisions at SIS energies. Z. Physik A - Hadrons and Nuclei 351, 59–69 (1995). https://doi.org/10.1007/BF01292786

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  • DOI: https://doi.org/10.1007/BF01292786

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