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Summary (II)

Peripheral Au+Au collisions:
Behave effectively as p+p collisions plus Ncoll scaling (expected pQCD behaviour) for all species and for all observables !

d+Au collisions:

No suppression observed in min. bias d+Au (and p+Au) reactions.
Cronin-like enhancement for p0 (small) and h± (larger).
Opposite behaviour of the centrality dependence of high pT production compared to Au+Au.
No “cold” nuclear matter effects (strong saturation of nuclear PDFs) seem to explain high pT Au+Au suppression.

Data vs. theory:

pQCD-based final-state parton energy loss models (“QGP” models) reproduce more aspects of the data (Au+Au, d+Au) than other approaches.
Non negligible “leftovers” lacking 100% consistent explanation.

Corollary: QGP = PQCD + (RAA+IAA) + dAu + J/ψ + Tγ

“100% evidence of QGP @ RHIC requires the J/ψ

& (thermal) photon signals (hopefully soon ...)”

Notes: