Overview (“Status of QGP & CGC search”)

• 1. Introduction:

• • The goal: Study Quantum Chromo many-body Dynamics: QGP, CGC.
  • The means: Compare hard scattering production in diff. colliding had. systems.

• 2. “QCD vacuum” reference results – high pT in p+p

  • Baseline hard scattering data in free space.

• 3. “Hot QCD medium” highlights – high pT in central A+A

  • dN/dpT light hadrons (u,d,s): suppressed
  • s, pT, centrality, and meson-baryon dependence
  • dNpair/dφ azimuthal anisotropies:
  • dissapearence of away-side dijet correlations
  • dN/dpT colorless probes (g): unsuppressed

• 4. “Cold QCD medium” highlights – high pT in d+Au

• •  dN/dpT light hadrons (u,d,s):
  • enhanced at y ≤ 0 (midrapidity & high x2 in Au)
  • suppressed at y ≥ 1 (small x2 in Au)

• 5. What have we learnt ? Data vs. theory.

• 6. Summary