“QGP” models vs. data (II)

• • pT dependence of Au+Au suppression  not described in 1st instance:
    • Additional nuclear effects needed to "flatten" LPM RAA (though they are probably justified given the d+Au results)
  • s dependence of Au+Au suppression clear ?
    • Why there is no jet quenching observed in Pb+Pb @ SPS if dNg/dy ~ 500 ?
    • (usual explanations: small plasma life-time, quark-dominated plasma, very small hard scattering cross-section, ...)
  • Particle species dependence of Au+Au suppression (“baryon enhancement”)  not described in 1st instance:
    • Additional non-perturbative final state effects (quark recomb., baryon junctions, others ?) needed.

Notes: