Advertisement

The European Physical Journal A

, Volume 32, Issue 2, pp 175–182 | Cite as

Break-up stage restoration in multifragmentation reactions

  • Ad. R. Raduta
  • E. Bonnet
  • B. Borderie
  • N. Le Neindre
  • S. Piantelli
  • M. F. Rivet
Regular Article - Heavy Ion Physics

Abstract.

In the case of Xe + Sn at 32MeV/nucleon multifragmentation reaction break-up fragments are built up from the experimentally detected ones using evaluations of light-particle evaporation multiplicities which thus settle fragment internal excitation. Freeze-out characteristics are extracted from experimental kinetic energy spectra under the assumption of full decoupling between fragment formation and energy dissipated in different degrees of freedom. The thermal kinetic energy is determined uniquely while for the freeze-out volume - collective energy a multiple solution is obtained. The coherence between the solutions of the break-up restoration algorithm and the predictions of a multifragmentation model with identical definition of primary fragments is regarded as a way to select the true value. The broad kinetic energy spectrum of 3He is consistent with the break-up genesis of this isotope.

PACS.

25.70.Pq Multifragment emission and correlations 24.10.Pa Thermal and statistical models 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    F. Gulminelli, Ph. Chomaz, O. Juillet, M.J. Ison, C.O. Dorso, in Proceedings for the VI Latin American Symposium on Nuclear Physics and Applications, Iguazu, Argentina, 3-7 October 2005, edited by A.J. Kreiner, O. Civitarese, C. Dorso, G.G. Bermudez, A.J. Pacheco, N.N. Scoccola, nucl-th/0511012, p. 332.Google Scholar
  2. 2.
    J.D. Frankland, Nucl. Phys. A 689, 905 (2001).CrossRefGoogle Scholar
  3. 3.
    J.D. Frankland, Nucl. Phys. A 689, 940 (2001).CrossRefGoogle Scholar
  4. 4.
    S. Hudan, Phys. Rev. C 67, 064613 (2003).CrossRefADSGoogle Scholar
  5. 5.
    S. Piantelli, Phys. Lett. B 627, 18 (2005).CrossRefGoogle Scholar
  6. 6.
    R.J. Charity, Phys. Rev. C 58, 1073 (1998).CrossRefADSGoogle Scholar
  7. 7.
    N. Le Neindre, These de doctorat, Université de Caen (1999), http://tel.ccsd.cnrs.fr/tel-00003741Google Scholar
  8. 8.
    V.I. Bogatin, Yad. Fiz. 32, 1363 (1980).Google Scholar
  9. 9.
    H.H. Gutbrod, Phys. Rev. Lett. 37, 667 (1976).CrossRefADSGoogle Scholar
  10. 10.
    W. Markiel, Nucl. Phys. A 485, 445 (1988).CrossRefADSGoogle Scholar
  11. 11.
    G. Poggi, Nucl. Phys. A 586, 755 (1995).CrossRefADSGoogle Scholar
  12. 12.
    R. Bougault, in Proceedings of the XXVII International Workshop on Gross Properties of Nuclei and Nuclear Excitations, Hirschegg, 1999, edited by H. Feldmeier, J. Knoll, W. Noerenberg, J. Wambach (GSI Darmstadt, 1999) p. 24.Google Scholar
  13. 13.
    W. Neubert, A.S. Botvina, Eur. Phys. J. A 7, 101 (2000).CrossRefADSGoogle Scholar
  14. 14.
    W.A. Friedman, Phys. Rev. C 42, 667 (1990).CrossRefADSGoogle Scholar
  15. 15.
    Ad.R. Raduta, E. Bonnet, B. Borderie, N. Le Neindre, M.F. Rivet, Phys. Rev. C 72, 057603 (2005).CrossRefADSGoogle Scholar
  16. 16.
    M.F. Rivet, Phys. Rev. C 25, 2430 (1982).CrossRefADSGoogle Scholar
  17. 17.
    L. Vaz, Z. Phys. A 311, 89 (1983).CrossRefGoogle Scholar
  18. 18.
    Bao-An Li, D.H.E. Gross, V. Lips, H. Oeschler, Phys. Lett. B 335, 1 (1994).CrossRefADSGoogle Scholar
  19. 19.
    T.C. Sangster, M. Begemann-Blaich, Th. Blaich, H.C. Britt, L.F. Hansen, M.N. Namboodiri, G. Peilert, Phys. Rev. C 51 (1995).Google Scholar
  20. 20.
    M. Begemann-Blaich, Phys. Rev. C 58, 1639 (1998).CrossRefADSGoogle Scholar
  21. 21.
    D.H.E. Gross, Rep. Prog. Phys. 53, 605 (1990)CrossRefADSGoogle Scholar
  22. 22.
    M. Parlog, G. Tabacaru, J.P. Wieleczko, J.D. Frankland, B. Borderie, A. Chbihi, M. Colonna, M.F. Rivet, Eur. Phys. J. A 25, 223 (2005) and references therein.CrossRefADSGoogle Scholar
  23. 23.
    A.M. Hellwege, K.H. Hellwege (Editors), Numerical Data and Functional Relationships in Science and Technology, Landolt-Bornstein, Vol. I (Springer-Verlag, Berlin, 1961).Google Scholar
  24. 24.
    Al.H. Raduta, Ad.R. Raduta, Phys. Rev. C 55, 1344 (1997)CrossRefADSGoogle Scholar
  25. 25.
    A. Le Fevre, Nucl. Phys. A 735, 219 (2004).CrossRefGoogle Scholar
  26. 26.
    J.N. De, S.K. Samaddar, X. Vinas, M. Centelles, Phys. Lett. B 638, 160 (2006).CrossRefADSGoogle Scholar
  27. 27.
    A.S. Iljinov, Nucl. Phys. A 543, 517 (1992).CrossRefADSGoogle Scholar
  28. 28.
    J.B. Natowitz, R. Wada, K. Hagel, T. Keutgen, M. Murray, A. Makeev, L. Qin, P. Smith, C. Hamilton, Phys. Rev. C 65, 034618 (2002) and references therein.CrossRefADSGoogle Scholar
  29. 29.
    M. Baldo, L.S. Ferreira, O.E. Nicotra, Phys. Rev. C 69, 034321 (2004).CrossRefADSGoogle Scholar
  30. 30.
    Al.H. Raduta, Ad.R. Raduta, Nucl. Phys. A 703, 876 (2002).CrossRefADSGoogle Scholar
  31. 31.
    A.H. Raduta, M. Colonna, V. Baran, M. Di Toro, Phys. Rev. C 74, 034604 (2006). CrossRefMathSciNetADSGoogle Scholar
  32. 32.
    M. Colonna, Nucl. Phys. A 642, 449 (1998).CrossRefADSGoogle Scholar
  33. 33.
    S.E. Koonin, J. Randrup, Nucl. Phys. A 474, 173 (1987).CrossRefADSGoogle Scholar

Copyright information

© Società Italiana di Fisica and Springer-Verlag 2007

Authors and Affiliations

  • Ad. R. Raduta
    • 1
    • 2
  • E. Bonnet
    • 1
  • B. Borderie
    • 1
  • N. Le Neindre
    • 1
  • S. Piantelli
    • 3
  • M. F. Rivet
    • 1
  1. 1.Institut de Physique NucleaireOrsay cedexFrance
  2. 2.NIPNEBucharest-MagureleRomania
  3. 3.Dipartimento di Fisica and Sezione INFNUniversità di FirenzeSesto Fiorentino (Fi)Italy

Personalised recommendations