Evolution of Fragment Production as a Function of Excitation in 35C1 and 70Ge Projectile Breakup

  • L. Beaulieu
  • D. R. Bowman
  • D. Fox
  • S. Das Gupta
  • J. Pan
  • G. C. Ball
  • B. Djerroud
  • D. Doré
  • A. Galindo-Uribarri
  • D. Guinet
  • E. Hogberg
  • D. Horn
  • R. Laforest
  • Y. Larochelle
  • P. Lautesse
  • M. Samri
  • R. Roy
  • C. St-Pierre

Abstract

Intermediate-mass fragment (IMF) production, typically 3≤;Z≤20, is a widely observed decay mode in heavy-ion reactions[1]. Possible scenarios to explain such a decay mode include bulk instabilities based on the expansion of hot nuclear matter with an initial compression stage in near-central collisions [2]–[4]. However, for such collisions, dynamical IMF production is also present as is evident from the observation of neck emission[5]–[7]. Also, the persistence of binary dissipative collisions[8]–[11] leaves a very small cross section for forming a hot and dense single source[12, 13]

Keywords

Excitation Energy Mass Scaling Sequential Decay Excitation Energy Range Excitation Energy Distribution 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    L.G. Moretto and G.J. Wozniak, Ann. Rev. Nucl. Sci 43, 379 (1993) and refs. therein.Google Scholar
  2. 2.
    W. A. Friedman, Phys. Rev. Lett. 60, 2125, (1988).CrossRefGoogle Scholar
  3. 3.
    W. A. Friedman, Phys. Rev. C 42, 667, (1990).Google Scholar
  4. 4.
    G. Peilert et al., Rep. Prog. Phys. 57, 553 (1994) and refs. therein.Google Scholar
  5. 5.
    C.P. Montoya et al., Phys. Rev. Lett. 73, 3070, (1994).ADSCrossRefGoogle Scholar
  6. 6.
    J. Tóke et al., Phys. Rev. Lett. 75, 2920, (1995).ADSCrossRefGoogle Scholar
  7. 7.
    J.F. Lecolley et al., Phys. Lett. B354, 202, (1995).Google Scholar
  8. 8.
    B. Lott et al., Phys. Rev. Lett. 68, 3141, (1992).ADSCrossRefGoogle Scholar
  9. 9.
    B.M. Quednau et al., Phys. Lett. B309, 10, (1993).Google Scholar
  10. 10.
    J.F. Lecolley et al., Phys. Lett. B325, 317, (1994).Google Scholar
  11. 11.
    Y. Larochelle et al., Phys. Lett. B352, 8, (1995).Google Scholar
  12. 12.
    J. Péter et al., Nucl. Phys. A593, 95, (1995).CrossRefGoogle Scholar
  13. 13.
    L. Beaulieu et al., Submitted to Phys. Rev. Lett., (1996).Google Scholar
  14. 14.
    S.B. Gazes et al., Phys. Rev. C 38, 712 (1988).ADSCrossRefGoogle Scholar
  15. 15.
    C. Pruneau et al., Nucl. Phys. A500, 168, (1989).CrossRefGoogle Scholar
  16. 16.
    J. Pouliot et al., Phys. Lett. B223, 16, (1989).Google Scholar
  17. 17.
    K.A. Griffionen et al., Phys. Rev. C 40, 1647, (1989).ADSCrossRefGoogle Scholar
  18. 18.
    R. Wada et al., Phys. Rev. C 39, 497, (1989).ADSCrossRefGoogle Scholar
  19. 19.
    J. Pouliot et al., Phys. Rev. C 43, 735, (1991).ADSCrossRefGoogle Scholar
  20. 20.
    D. Doré et al., Nucl. Phys. A545, 363, (1992).CrossRefGoogle Scholar
  21. 21.
    C. Schwarz et al., Z. Phys. A 345, 29, (1993).ADSCrossRefGoogle Scholar
  22. 22.
    A. Lleres et al., Phys. Rev. C 48, 2753, (1993).ADSCrossRefGoogle Scholar
  23. 23.
    P. Désesquelles et al., Phys. Rev. C 48, 1828, (1993).ADSCrossRefGoogle Scholar
  24. 24.
    A. Badalà et al., Phys. Rev. C 48, 633, (1993).ADSCrossRefGoogle Scholar
  25. 25.
    R. Laforest et al., Nucl. Phys. A568, 350, (1994).CrossRefGoogle Scholar
  26. 26.
    L. Beaulieu et al., Nucl. Phys. A580, 81, (1994).CrossRefGoogle Scholar
  27. 27.
    R.J. Charity et al., Phys. Lett. B323, 113, (1994).Google Scholar
  28. 28.
    R.J. Charity et al., Phys. Rev. 52, 3126, (1995).ADSCrossRefGoogle Scholar
  29. 29.
    M. Samri et al., Nucl. Phys. A583, 427, (1995).CrossRefGoogle Scholar
  30. 30.
    L. Beaulieu et al., Phys. Rev. C51, 3492, (1995).ADSGoogle Scholar
  31. 31.
    M. Samri et al., Accepted for publication in Phys. Lett. B, (1996).Google Scholar
  32. 32.
    W. Trautmann et al., Proceedings of the XXXIII International Winter Meeting on Nuclear Physics, Bormio (Italy), 1995 23-27 January. Ed. I. Iori, Physics Dept, Univ. Milano, p.372, (1995).Google Scholar
  33. 33.
    J. Hubele et al., Phys. Rev. C46, 1577, (1992).ADSGoogle Scholar
  34. 34.
    A. Lleres et al., Phys. Rev. C 50, 1973, (1994).ADSCrossRefGoogle Scholar
  35. 35.
    P. Kreutz et al., Nucl. Phys. A556, 672, (1993).CrossRefGoogle Scholar
  36. 36.
    C. Pruneau et al., Nucl. Inst. and Meth. A297, 404, (1990).ADSCrossRefGoogle Scholar
  37. 37.
    Y. Larochelle et al., Nucl. Instr. and Meth. in Phys. Res. A348, 167, (1994).Google Scholar
  38. 38.
    J.P. Wielezcko et al., Proceedings of the 2nd TAPS Workshop, Guardamar, Espagne ed. by Diaz, Martinez and Schutz, World Scientific, p.145, (1993).Google Scholar
  39. 39.
    R.J. Charity et al., Nucl. Phys. A483, 371, (1988).CrossRefGoogle Scholar
  40. 40.
    D. Horn et al., Proceedings of the Workshop on Heavy-Ion Fusion, Padua, Italie, 1994 ed. A.M. Stefanini, G. Nebbia, S. Lunardi, G.Montagnoli and A. Vitturi, World Scientific, p.555, (1994).Google Scholar
  41. 41.
    D. Durand, Nucl. Phys. A 541, 266, (1992).Google Scholar
  42. 42.
    J. Pan et al., Phys. Lett. B344, 29, (1995).Google Scholar
  43. 43.
    J. Pan et al., Phys. Rev. C51, 1384, (1995).ADSGoogle Scholar
  44. 44.
    T. Li et al., Phys. Rev. Lett. 70, 1924, (1993).ADSCrossRefGoogle Scholar
  45. 45.
    S.C. Jeong et al., LPCC 95-12, submitted to Nucl Phys. A, (1996).Google Scholar
  46. 46.
    J.C. Steckmeyer et al., Proceedings of the XXXIII International Winter Meeting on Nuclear Physics, Bormio (Italie), 1995 23-27 Janvier. Ed. I. Iori, Dept Physics, Univ. Milano, p.183, (1995).Google Scholar
  47. 47.
    L. Beaulieu et al., To be submitted, (1996).Google Scholar
  48. 48.
    P. Désesquelles et al., Proceedings of the XXXIII International Winter Meeting on Nuclear Physics, Bormio (Italie), 1995 23-27 Janvier. Ed. I. Iori, Dept Physics, Univ. Milano, p.173, (1995).Google Scholar
  49. 49.
    J.A. Hauger et al., submitted to Phys. Rev. Lett. and Ph. D. Thesis, Purdue Univ., W. Lafayette, IN, unpublished, (1996).Google Scholar
  50. 50.
    M.L. Tincknell et al., Proceeding of the 12th Workshop on Nuclear Dynamics, Snowbird, Utah (USA), 1996 3-10 February. Ed. W. Bauer and G. Westfall, Plenum Press. To be published., (1996).Google Scholar

Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

  • L. Beaulieu
    • 1
  • D. R. Bowman
    • 2
  • D. Fox
    • 2
    • 5
  • S. Das Gupta
    • 4
  • J. Pan
    • 4
  • G. C. Ball
    • 2
  • B. Djerroud
    • 1
    • 6
  • D. Doré
    • 1
    • 7
  • A. Galindo-Uribarri
    • 2
  • D. Guinet
    • 3
  • E. Hogberg
    • 2
  • D. Horn
    • 2
  • R. Laforest
    • 1
    • 8
  • Y. Larochelle
    • 1
  • P. Lautesse
    • 3
  • M. Samri
    • 1
  • R. Roy
    • 1
  • C. St-Pierre
    • 1
  1. 1.Laboratoire de Physique Nucléaire, Département de PhysiqueUniversité LavalSainte-FoyCanada
  2. 2.AECL, Chalk River LaboratoriesChalk RiverCanada
  3. 3.46 Bd du11 Novembre 1918Institut de Physique Nucléaire de LyonVilleurbanne CedexFrance.
  4. 4.Department of PhysicsMcGill UniversityMontréal,Canada
  5. 5.Present address: Practical Political ConsultingEast LansingUSA
  6. 6.NSRL, University of RochesterUSA
  7. 7.IPN OrsayOrsay CedexFrance
  8. 8.AECL, Chalk River LaboratoriesChalk RiverCanada

Personalised recommendations