Leading-particle suppression in high energy nucleus-nucleus collisions

experimental physics

Abstract.

Parton energy loss effects in heavy-ion collisions are studied with the Monte Carlo program PQM (Parton Quenching Model) constructed using the BDMPS quenching weights and a realistic collision geometry. The merit of the approach is that it contains only one free parameter that is tuned to the high-p t nuclear modification factor measured in central Au-Au collisions at \(\sqrt{s_{\rm NN}} = 200\) GeV. Once tuned, the model is consistently applied to all the high-p t observables at 200 GeV: the centrality evolution of the nuclear modification factor, the suppression of the away-side jet-like correlations, and the azimuthal anisotropies for these observables. Predictions for the leading-particle suppression at nucleon-nucleon centre-of-mass energies of 62.4 and 5500 GeV are presented. The limits of the eikonal approximation in the BDMPS approach, when applied to finite-energy partons, are discussed.

Keywords

Anisotropy Energy Loss Particle Acceleration Loss Effect Centrality Evolution 

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References

  1. 1.
    S.S. Adler et al. , PHENIX Coll., Phys. Rev. Lett. 91, 072301 (2003) [arXiv:nucl-ex/0304022]; Phys. Rev. C 69, 034910 (2004) [arXiv:nucl-ex/0308006]CrossRefGoogle Scholar
  2. 2.
    J. Adams et al. , STAR Coll., Phys. Rev. Lett. 91, 172302 (2003) [arXiv:nucl-ex/0305015]CrossRefGoogle Scholar
  3. 3.
    C. Adler et al. , STAR Coll., Phys. Rev. Lett. 90, 082302 (2003) [arXiv:nucl-ex/0210033]CrossRefGoogle Scholar
  4. 4.
    J. Adams et al. , STAR Coll., Phys. Rev. Lett. 91, 072304 (2003) [arXiv:nucl-ex/0306024]CrossRefGoogle Scholar
  5. 5.
    S.S. Adler et al. , PHENIX Coll., Phys. Rev. Lett. 91, 072303 (2003) [arXiv:nucl-ex/0306021]CrossRefGoogle Scholar
  6. 6.
    M. Gyulassy and X.N. Wang, Nucl. Phys. B 420, 583 (1994) [arXiv:nucl-th/9306003]CrossRefGoogle Scholar
  7. 7.
    R. Baier, Yu.L. Dokshitzer, A.H. Mueller, S. Peigné and D. Schiff, Nucl. Phys. B 483, 291 (1997) [arXiv:hep-ph/9607355]; B 484, 265 (1997) [arXiv:hep-ph/9608322]; R. Baier, Yu.L. Dokshitzer, A.H. Mueller and D. Schiff, Phys. Rev. C 58, 1706 (1998) [arXiv:hep-ph/9803473]; Nucl. Phys. B 531, 403 (1998) [arXiv:hep-ph/9804212]CrossRefGoogle Scholar
  8. 8.
    B.G. Zakharov, JETP Lett. 63, 952 (1996) [arXiv:hep-ph/9607440]CrossRefGoogle Scholar
  9. 9.
    M. Gyulassy, P. Lévai and I. Vitev, Nucl. Phys. B 571, 197 (2000) [arXiv:hep-ph/9907461]; Phys. Rev. Lett. 85, 5535 (2000) [arXiv:nucl-th/0005032]; Nucl. Phys. B 594, 371 (2001) [arXiv:nucl-th/0006010]CrossRefGoogle Scholar
  10. 10.
    J. Osborne and X.N. Wang, Nucl. Phys. A 710, 281 (2002) [arXiv:hep-ph/0204046]CrossRefGoogle Scholar
  11. 11.
    B.W. Zhang and X.N. Wang, Nucl. Phys. A 720, 429 (2003) [arXiv:hep-ph/0301195]CrossRefGoogle Scholar
  12. 12.
    U.A. Wiedemann, Nucl. Phys. B 588, 303 (2000) [arXiv:hep-ph/0005129]CrossRefGoogle Scholar
  13. 13.
    C.A. Salgado and U.A. Wiedemann, Phys. Rev. D 68, 014008 (2003) [arXiv:hep-ph/0302184]CrossRefGoogle Scholar
  14. 14.
    A. Drees, H. Feng and J. Jia, arXiv:nucl-th/0310044Google Scholar
  15. 15.
    R. Baier, Nucl. Phys. A 715, 209 (2003) [arXiv:hep-ph/0209038]CrossRefGoogle Scholar
  16. 16.
    K.J. Eskola and H. Honkanen, Nucl. Phys. A 713, 167 (2003) [arXiv:hep-ph/0205048]CrossRefGoogle Scholar
  17. 17.
    I. Vitev and M. Gyulassy, Phys. Rev. Lett. 89, 252301 (2002) [arXiv:hep-ph/0209161]CrossRefGoogle Scholar
  18. 18.
    R. Baier, Yu.L. Dokshitzer, A.H. Mueller and D. Schiff, JHEP 0109, 033 (2001) [arXiv:hep-ph/0106347]Google Scholar
  19. 19.
    R.J. Glauber and G. Matthiae, Nucl. Phys. B 21, 135 (1970)Google Scholar
  20. 20.
    C.W. deJager, H. deVries and C. deVries, Atom. Data Nucl. Data Tabl. 14, 485 (1974)Google Scholar
  21. 21.
    A. Dainese, Eur. Phys. J. C 33, 495 (2004) [arXiv:nucl-ex/0312005]Google Scholar
  22. 22.
    K.J. Eskola, H. Honkanen, C.A. Salgado and U.A. Wiedemann, arXiv:hep-ph/0406319Google Scholar
  23. 23.
    T. Sjöstrand et al. , Computer Phys. Commun. 135, 238 (2001) [arXiv:hep-ph/0010017]CrossRefGoogle Scholar
  24. 24.
    H.L. Lai et al. , CTEQ Coll., Phys. Rev. D 55, 1280 (1997) [arXiv:hep-ph/9606399]CrossRefGoogle Scholar
  25. 25.
    B.A. Kniehl, G. Kramer and B. Pötter, Nucl. Phys. B 582, 514 (2000) [arXiv:hep-ph/0010289]CrossRefGoogle Scholar
  26. 26.
    S.S. Adler et al. , PHENIX Coll., Phys. Rev. Lett. 91, 241803 (2003) [arXiv:hep-ex/0304038]CrossRefGoogle Scholar
  27. 27.
    U.A. Wiedemann, Nucl. Phys. A 690, 731 (2001) [arXiv:hep-ph/0008241]CrossRefGoogle Scholar
  28. 28.
    X.N. Wang, arXiv:nucl-th/0405017Google Scholar
  29. 29.
    A.M. Poskanzer and S.A. Voloshin, Phys. Rev. C 58, 1671 (1998)CrossRefGoogle Scholar
  30. 30.
    S.S. Adler et al. , PHENIX Coll., Phys. Rev. Lett. 91, 182301 (2003) [arXiv:nucl-ex/0305013]CrossRefGoogle Scholar
  31. 31.
    A. Tang for the STAR Coll., presented at Quark Matter 2004, Oakland, USA, January 11-17, 2004Google Scholar
  32. 32.
    C. Adler et al. , STAR Coll., Phys. Rev. C 66, 034904 (2002) [arXiv:nucl-ex/0206001]CrossRefGoogle Scholar
  33. 33.
    K. Filimonov for the STAR Coll., Nucl. Phys. A 715, 737 (2003)CrossRefGoogle Scholar
  34. 34.
    K.J. Eskola, K. Kajantie, P.V. Ruuskanen and K. Tuominen, Nucl. Phys. B 570, 379 (2000) [arXiv:hep-ph/9909456]CrossRefGoogle Scholar
  35. 35.
    T. Sakaguchi for the PHENIX Coll., presented at the RHIC & AGS Annual Users’ Meeting, Brookhaven, USA, May 10-14, 2004; D. d’Enterria for the PHENIX Coll., presented at the Hot Quarks Workshop, Taos, USA, July 18-24, 2004, to be published in J. Phys. GGoogle Scholar
  36. 36.
    I. Vitev, arXiv:nucl-th/0404052Google Scholar
  37. 37.
    X.N. Wang, Phys. Rev. C 70, 031901 (2004) [arXiv:nucl-th/0405029]CrossRefGoogle Scholar
  38. 38.
    A. Adil and M. Gyulassy, to be published in Phys. Lett. B, arXiv:nucl-th/0405036Google Scholar

Copyright information

© Springer-Verlag Berlin/Heidelberg 2005

Authors and Affiliations

  1. 1.Universitá degli Studi di Padova and INFNPadovaItaly
  2. 2.Institut für KernphysikFrankfurt am MainGermany
  3. 3.Instituto de Ciencias NuclearesUNAMMexico CityMexico

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