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Study of QGP signatures with the ϕ → K + K signal in Pb-Pb ALICE events

  • A. Akindinov
  • A. Alici
  • P. Antonioli
  • S. Arcelli
  • M. Basile
  • G. Cara Romeo
  • M. Chumakov
  • L. Cifarelli
  • F. Cindolo
  • A. De Caro
  • D. De Gruttola
  • S. De Pasquale
  • A. Di Bartolomeo
  • M. Fusco Girard
  • Yu Grishuk
  • C. Guarnaccia
  • M. Guida
  • D. Hatzifotiadou
  • D. W. Kim
  • J. S. Kim
  • S. Kiselev
  • G. Laurenti
  • K. Lee
  • S. C. Lee
  • Ye Lyublev
  • M. L. Luvisetto
  • D. Mal'kevich
  • A. Margotti
  • A. Martemiyanov
  • K. Mikhin
  • R. Nania
  • F. Noferini
  • A. Pesci
  • M. Ryabinin
  • E. Scapparone
  • G. Scioli
  • A. Selivanov
  • S. Sellitto
  • R. Silvestri
  • A. Smirnitskiy
  • Y. Sun
  • G. Valenti
  • I. Vetlitskiy
  • K. Voloshin
  • L. Vorobiev
  • M. C. S. Williams
  • D. Yakorev
  • B. Zagreev
  • C. Zampolli
  • A. Zichichi
Experimental Physics

Abstract.

The ϕ → K + K decay channel in Pb-Pb collisions at LHC is studied through a full simulation of the ALICE detector. The study focuses on possible signatures in this channel of quark-gluon plasma (QGP) formation. On a basis of 106 collisions at high centrality some proposed QGP signatures are clearly visible both in K + K invariant mass and transverse mass distributions. The high significance of this observation appears to reside heavily on the use of the TOF (Time Of Flight) system of ALICE in addition to its central tracking detectors.

Keywords

Field Theory Elementary Particle Quantum Field Theory High Significance Mass 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.

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References

  1. 1.
    M. Jacob, Nucl. Phys. A 418, 7c (1984)CrossRefADSGoogle Scholar
  2. 2.
    U. Heinz, M. Jacob, nucl-th/0002042 (2000) and references thereinGoogle Scholar
  3. 3.
    M. Gaździcki (NA49 Collab.), J. Phys. G 30, S701 (2004)Google Scholar
  4. 4.
    A. Marin (CERES Collab.), in proc. of XXXVIIth Recontres de Moriond: QCD and High Energy Hadronic Interactions, Les Arcs, France (2002), hep-ex/0205105Google Scholar
  5. 5.
    G.E. Bruno (NA57 Collab.), J. Phys. G 30, S717 (2004)Google Scholar
  6. 6.
    M. Gyulassy, NATO Advanced Study Institute: Structure and Dynamics of Elementary Matter, Kemer, Turkey (2003), nucl-th/0403032 (2004) and references thereinGoogle Scholar
  7. 7.
    J. Rafelski, B. Müller, Phys. Rev. Lett. 48, 1066 (1982)CrossRefADSGoogle Scholar
  8. 8.
    J. Rafelski, Nucl. Phys. A 418, 215c (1984)CrossRefADSGoogle Scholar
  9. 9.
    B.B. Back et al. (E917 Collab.), Phys. Rev. C 69, 054901 (2003)Google Scholar
  10. 10.
    S.V. Afanasiev et al. (NA49 Collab.), Phys. Lett. B 491, 59 (2000)CrossRefGoogle Scholar
  11. 11.
    L. Ahle et al. (E802 Collab.), Phys. Rev. C 57, 466 (1998); Phys. Rev. C 58, 3523 (1998); Phys. Rev. C 60, 044904 (1999); L. Ahle et al. (E866 and E917 Collaborations), Phys. Lett. B 476, 1 (2000); Phys. Lett. B 490, 53 (2000); J. Barrette et al. (E877 Collab.), Phys. Rev. C 62, 024901 (2000); D. Pelte et al. (FOPI Collab.), Z. Phys. A 357, 215 (1997)CrossRefGoogle Scholar
  12. 12.
    J. Adams et al. (STAR Collab.), (2003) Phys. Rev. Lett. 92, 112301 (2004)Google Scholar
  13. 13.
    K. Adcox et al. (PHENIX Collab.), Phys. Rev. Lett. 88, 242301 (2002)CrossRefGoogle Scholar
  14. 14.
    S.S. Adler et al. (PHENIX Collab.), nucl-ex/0410012 (2004)Google Scholar
  15. 15.
    S. Okubo, Phys. Rev. D 16, 2336 (1977)CrossRefADSGoogle Scholar
  16. 16.
    H. Lipkin, Phys. Lett. B 60, 371 (1976)CrossRefADSGoogle Scholar
  17. 17.
    N. Ahmad et al. (ALICE Collab.), Technical Proposal, CERN/LHCC 95-71, LHCC/P3, 15 December 1995Google Scholar
  18. 18.
    A. De Caro et al. , Internal Note ALICE-INT-2003-067 and references thereinGoogle Scholar
  19. 19.
    A. De Caro, The ALICE TOF (Time-Of-Flight): a powerful detector for relevant observables in nucleus-nucleus collisions at LHC, Ph.D. Thesis, Bologna University (2004), http:/ alice.sa.infn.it PhDthesisAdeCaro.ps.gzGoogle Scholar
  20. 20.
    N. Ahmad et al. (ALICE Collab.), Time Projection Chamber, Technical Design Report, CERN/LHCC 2000-001, ALICE TDR 7, 7 January 2000Google Scholar
  21. 21.
    N. Ahmad et al. (ALICE Collab.), Time of Flight System, Technical Design Report, CERN-LHCC 2000-12, ALICE TDR 8, 16 February 2000; P. Cortese at al. (ALICE Collab.), Time of Flight System, Technical Design Report, Addendum, CERN-LHCC 2002-016, Addendum to ALICE TDR 8, 24 April 2002Google Scholar
  22. 22.
    A. Akindinov et al. (ALICE TOF Collab.), Eur. Phys. J. C32S1, 165 (2004)Google Scholar
  23. 23.
    A. Shor, Phys. Rev. Lett. 54, 1122 (1985)CrossRefADSGoogle Scholar
  24. 24.
    S. Danos, J. Rafelski, Phys. Rev D 27, 671 (1983)CrossRefADSGoogle Scholar
  25. 25.
    G. Domokos, J. Goldman, Phys. Rev. D 23, 203 (1981)CrossRefADSGoogle Scholar
  26. 26.
    M. Gaździcki, D. Röhrich, Z. Phys. C 65, 215 (1995); C 71, 55 (1996) and references thereinCrossRefGoogle Scholar
  27. 27.
    M. Gaździcki, Z. Phys. C 66, 659 (1995)CrossRefGoogle Scholar
  28. 28.
    M. Gaździcki, M.I. Gorenstein, Acta Phys. Polon. B 30, 2705 (1999) and references thereinADSGoogle Scholar
  29. 29.
    S.V. Afanasiev et al. (NA49 Collab.), Phys. Rev. C 66, 054902 (2002)CrossRefGoogle Scholar
  30. 30.
    A. Mischke (NA49 Collab.), Int. Europhys. Conf. on High Energy Phys., Aachen, Germany (2003), Eur. Phys. J. C 33, S621 (2004)Google Scholar
  31. 31.
    C. Adler et al. (STAR Collab.), Phys. Rev. C 65, 041901 (2002)CrossRefGoogle Scholar
  32. 32.
    T.S. Ullrich, Nucl. Phys. A 715, 399c (2003) and references thereinCrossRefADSGoogle Scholar
  33. 33.
    J. Adams et al. (STAR Collab.), (2004) nucl-ex/0406003Google Scholar
  34. 34.
    C. Markert (STAR Collab.), J. Phys. G 30, S1313 (2004)Google Scholar
  35. 35.
    X.-N. Wang et al. , Phys. Rev. D 44, 3501 (1991); Phys. Rev. Lett. 68, 1480 (1992)CrossRefGoogle Scholar
  36. 36.
    M. Asakawa, C.M. Ko, Phys. Lett. B 322, 33 (1994); Phys. Rev. C 50, 3064 (1994)CrossRefADSGoogle Scholar
  37. 37.
    F.R. Brown et al. , Phys. Rev. Lett. 65, 2491 (1990); F. Karsch, E. Laermann, A. Peikert, Phys. Lett. B 478, 447 (2000)CrossRefGoogle Scholar
  38. 38.
    P. Fachini, J. Phys. G 30, S735 (2004)Google Scholar
  39. 39.
    R.D. Pisarski, Phys. Lett. B 110, 155 (1982)CrossRefADSGoogle Scholar
  40. 40.
    T. Hatsuda, T. Kunihiro, Phys. Rev. Lett. 55, 158 (1985); T. Hatsuda, Nucl. Phys. A 544, 27 (1992)CrossRefADSGoogle Scholar
  41. 41.
    M. Asakawa, C.M. Ko, Phys. Rev. C 48, 526 (1993); Nucl. Phys. A 560, 399 (1993)CrossRefADSGoogle Scholar
  42. 42.
    S. Gao et al. , Phys. Rev. C 49, 40 (1994); H.-C. Jean et al. , Phys. Rev. C 49, 1981 (1994); H. Shiomi, T. Hatsuda, Nucl. Phys. A 590, 545c (1995)CrossRefGoogle Scholar
  43. 43.
    C.M. Ko, D. Seibert, Phys. Rev. C 49, 2198 (1994)CrossRefADSGoogle Scholar
  44. 44.
    D. Lissauer, E. Shuryak, Phys. Lett. B 253, 15 (1991); E. Shuryak, V. Thorsson, Nucl. Phys. A 536, 739 (1992)CrossRefADSGoogle Scholar
  45. 45.
    P.Z. Bi, J. Rafelski, Phys. Lett. B 262, 485 (1991)CrossRefADSGoogle Scholar
  46. 46.
    D. Seibert, C.M. Ko, Phys.Rev. C 50, 559 (1994)CrossRefADSGoogle Scholar
  47. 47.
    L. Holt, K. Haglin, J. Phys. G 31, S245 (2005)Google Scholar
  48. 48.
    F. Abe et al. (CDF Collab.), Phys. Rev. Lett. 61, 1819 (1988)CrossRefGoogle Scholar
  49. 49.
    H.U. Bengtsson, T. Sjöstrand, Comput. Phys. Commun. 46, 43 (1987)CrossRefADSGoogle Scholar

Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • A. Akindinov
    • 1
  • A. Alici
    • 2
    • 3
  • P. Antonioli
    • 3
  • S. Arcelli
    • 3
    • 4
  • M. Basile
    • 2
    • 3
  • G. Cara Romeo
    • 3
  • M. Chumakov
    • 1
  • L. Cifarelli
    • 2
    • 3
    • 4
  • F. Cindolo
    • 3
  • A. De Caro
    • 5
  • D. De Gruttola
    • 5
  • S. De Pasquale
    • 5
  • A. Di Bartolomeo
    • 5
  • M. Fusco Girard
    • 5
  • Yu Grishuk
    • 1
  • C. Guarnaccia
    • 5
  • M. Guida
    • 5
  • D. Hatzifotiadou
    • 3
  • D. W. Kim
    • 6
  • J. S. Kim
    • 6
  • S. Kiselev
    • 1
  • G. Laurenti
    • 3
  • K. Lee
    • 6
  • S. C. Lee
    • 6
  • Ye Lyublev
    • 1
  • M. L. Luvisetto
    • 3
  • D. Mal'kevich
    • 1
  • A. Margotti
    • 3
  • A. Martemiyanov
    • 1
  • K. Mikhin
    • 1
  • R. Nania
    • 3
  • F. Noferini
    • 2
    • 3
  • A. Pesci
    • 3
  • M. Ryabinin
    • 1
  • E. Scapparone
    • 3
  • G. Scioli
    • 2
    • 3
  • A. Selivanov
    • 1
  • S. Sellitto
    • 5
  • R. Silvestri
    • 5
  • A. Smirnitskiy
    • 1
  • Y. Sun
    • 6
  • G. Valenti
    • 3
  • I. Vetlitskiy
    • 1
  • K. Voloshin
    • 1
  • L. Vorobiev
    • 1
  • M. C. S. Williams
    • 3
  • D. Yakorev
    • 6
  • B. Zagreev
    • 1
  • C. Zampolli
    • 2
    • 3
  • A. Zichichi
    • 2
    • 3
    • 4
  1. 1.Institute for Theoretical and Experimental PhysicsMoscowRussia
  2. 2.Dipartimento di Fisica dell'UniversitáBolognaItaly
  3. 3.Museo Storico della Fisica e Centro Studi e Ricerche "Enrico Fermi"RomaItaly
  4. 4.Dipartimento di Fisica dell'Universitá and INFNSalernoItaly
  5. 5.Department of PhysicsKangnung National UniversityKangnungSouth Korea
  6. 6.World LaboratoryLausanneSwitzerland

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