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High pT @ CERN-SPS: “Cronin” or “quenching” ?
New nuclear modification factor (better p+p → π0 ref. @ √sNN = 17.3 GeV)
[D.d'E. to be submitted]
No “Cronin” effect in central collisions (RAA ~ 1).
“Cronin” enhancement in peripheral ... and suppression in top central ?
Look for onset of suppression at RHIC Au+Au, p+p @ √sNN≈ 20 GeV ?