Advertisement

The European Physical Journal A

, Volume 36, Issue 1, pp 111–117 | Cite as

Diffusion or bounce back in relativistic heavy-ion collisions?

  • G. WolschinEmail author
  • M. Biyajima
  • T. Mizoguchi
Regular Article - Theoretical Physics

Abstract.

The time evolution of pseudorapidity distributions of produced charged hadrons in d + Au collisions at \( \sqrt{{s_{NN}}}\) = 200 GeV is investigated. Results of a nonequilibrium statistical relativistic diffusion model with three sources are compared with a macroscopic “bounce-back” model that does not allow for statistical equilibration at large times, but instead leads to motion reversal. When compared to the data, the results of the diffusion approach are more precise, thus emphasizing that the system is observed to be on its way to thermal equilibrium.

PACS.

25.75.-q Relativistic heavy-ion collisions 24.60.Ky Fluctuation phenomena 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    G. Wolschin, Eur. Phys. J. A 5, 85 (1999)CrossRefADSGoogle Scholar
  2. 2.
    G. Wolschin, Europhys. Lett. 74, 29 (2006).CrossRefADSGoogle Scholar
  3. 3.
    M. Biyajima, M. Ide, M. Kaneyama, T. Mizoguchi, N. Suzuki, Prog. Theor. Phys. Suppl. 153, 344 (2004)CrossRefADSGoogle Scholar
  4. 4.
    G. Wolschin, M. Biyajima, T. Mizoguchi, N. Suzuki, Phys. Lett. B 633, 38 (2006).CrossRefADSGoogle Scholar
  5. 5.
    G. Wolschin, M. Biyajima, T. Mizoguchi, N. Suzuki, Ann. Phys. (Leipzig) 15, 369 (2006).CrossRefADSGoogle Scholar
  6. 6.
    A. Bialas, W. Czyz, Acta Phys. Pol. B 36, 905 (2005).ADSGoogle Scholar
  7. 7.
    R. Kuiper, G. Wolschin, Ann. Phys. (Leipzig) 16, 67 (2007)zbMATHCrossRefADSGoogle Scholar
  8. 8.
    P.J. Siemens, J.O. Rasmussen, Phys. Rev. Lett. 42, 880 (1979).CrossRefADSGoogle Scholar
  9. 9.
    PHOBOS Collaboration (B.B. Back), Phys. Rev. Lett. 93, 082301 (2004).CrossRefADSGoogle Scholar
  10. 10.
    PHOBOS Collaboration (B.B. Back), Phys. Rev. C 72, 031901 (2005).CrossRefADSGoogle Scholar
  11. 11.
    G.E. Uhlenbeck, L.S. Ornstein, Phys. Rev. 36, 823 (1930).CrossRefADSGoogle Scholar
  12. 12.
    M. Biyajima, preprint nucl-th/0410094v2 (2004).Google Scholar
  13. 13.
    BRAHMS Collaboration (I. Arsene), Phys. Rev. Lett. 94, 032301 (2005).CrossRefADSGoogle Scholar
  14. 14.
    STAR Collaboration (B.I. Abelev), preprint nucl-ex/ 0703016 (2007).Google Scholar

Copyright information

© Società Italiana di Fisica and Springer-Verlag 2008

Authors and Affiliations

  1. 1.Institut für Theoretische PhysikHeidelbergGermany
  2. 2.School of General EducationShinshu UniversityMatsumotoJapan
  3. 3.Toba National College of Maritime TechnologyTobaJapan

Personalised recommendations