Summary (I)

• Vast amount of high pT data: dN/dpT, dN/dφ for many different species (h±,π0, K0s, p,p, Λ,Λ, e± ...) and diff. centrality classes, in Au+Au, d+Au, and p+p collisions @ √s = 200 GeV

• Central Au+Au collisions :

  • Strong suppression (factor ~ 4-5) of all u,d,s hadrons (with respect to Ncoll scaling) above pT~ 5 GeV/c.
  • Flat and universal (pid-wise) pT dependence of suppression >5 GeV/c.
  • Very different behaviour than at lower √s (“Cronin” enhancement).
  • Smooth centrality dependence of suppression (weak Npart scaling).
  • “Anomalous” particle composition at intermediate pT~2-5 GeV/c: baryon/meson ≈ 0.8 ratio >> baryon/meson ≈ 0.2 in p+p and e+e-.
  • Same suppression at y ≈ 0 and y ≈ 2.
  • No suppression of charm mesons observed (within exp. uncertainties).
  • Strong elliptic flow signal (early collective rescattering).
  • Jet-like signal in near-side azimuthal correlations.
  • Disappearance of jet away-side azimuthal correlations.

Notes: