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Norwegian High-Energy Heavy Ion Theory 1998 - 2005

Norwegian High-Energy Heavy Ion Theory 1998 - 2005. Bergen, Oct. 19, 2005. Bergen-Oslo Staff. Bergen-Oslo Junior Staff. ?. An example of important results:.

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Norwegian High-Energy Heavy Ion Theory 1998 - 2005

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  1. Norwegian High-Energy Heavy Ion Theory 1998 - 2005 Bergen, Oct. 19, 2005

  2. Bergen-Oslo Staff

  3. Bergen-Oslo Junior Staff

  4. ?

  5. An example of important results: • 1999: Csernai & Röhrich [Phys.Lett.B458(99)454] observed the “3rd flow component” at SPS energies, not discussed before. It is observable in the directed flow v1. It is a signature of the soft Quark Gluon Plasma. • 2004: Five years later, it was first observed at RHIC, and presented now at QM 2004! STAR, PHOBOS & PHENIX have all measured the flow component v1, and have detected the signs of the “3rd flow component”!

  6. Hydro [Csernai, HIPAGS’93]

  7. Development of QGSM is continuing

  8. Bravina, Zabrodin, Arsene, Tywoniuk (UiO) and A. B. Kaidalov (ITEP) Gluon shadowing and the nuclear modification factor in Glauber-Gribov model The model links shadowing in A+A collisions to diffraction. In the high-energy limit the blobs in the diagrams are approximated by Pomeron exchanges. Input: data from HERA on diffractive and inclusive cross-sections - effective quark and gluon structure functions of nucleon and Pomeron Preprint at ICHEP2002 [Capella et al. Eur. Phys. J. C 5 (98); Armesto et al. Eur. Phys. J. C 23 (03); Capella et al. Phys. Rev. D 63 (01)]

  9. Au-Au – directed flow Au-Au 19.6 GeV h± Au-Au 62.4 GeV h± PHOBOS preliminary PHOBOS preliminary Update of directed flow result first shown at QM2004 Similar (2-subevent) technique Added 62.4 GeV data Confirmed with mixed harmonic analysis 0-40% centrality 0-40% centrality Au-Au 130 GeV h± Au-Au 200 GeV h± PHOBOS preliminary PHOBOS preliminary 0-40% centrality 0-40% centrality See poster by A. Mignerey in Poster 1, section 2, number 47 S. Manly – U. Rochester Quark Matter, Budapest, Hungary - August 2005 11 11

  10. Au-Au update – directed flow Baseline analysis overlaid with new PHOBOS mixed harmonic analysis Shows non-flow correlations small PHOBOS preliminary h± Au-Au PHOBOS preliminary h± Au-Au PHOBOS preliminary h± Au-Au PHOBOS preliminary h± Au-Au Mixed harmonic method: STAR collaboration, Phys. Rev. C 72 (2005) 014904 S. Manly – U. Rochester Quark Matter, Budapest, Hungary - August 2005 12 12

  11. Finite b & Elliptic flow Beam direction 

  12. FOHS - Movies: Freeze Out B=0, T-fo = 139MeV B=0.4, T-fo = 139MeV B=0, T-fo = 180MeV B=0.4, T-fo = 180MeV [Dan Strottman, Bernd Schlei, Los Alamos, LA-UR-03-3410]

  13. OUTLOOK • Theoretical heavy ion physics is very much needed by complex experiments, new fundamental problems, and high level education. • We need in Bergen new permanent staff, with resources to plan for the next years!

  14. Nuclear Theory

  15. Staff

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