5
Jan-02 Central Central
Jan-02
High pHigh pTT at RHIC at RHIC Measured in PHENIX for
Charged hadrons 0’s (with both PgGl and PbSc
calorimeters) Observe
Peripheral collisions: Good agreement with scaled p-p reference
Central collisions: Clear deficit with respect to scaled reference
Jan-02
Is It New?Is It New?
Historically, enhancements have been seen in per-nucleon yields of high pT hadrons from proton-nucleus and nucleus-nucleus collisions: “Cronin effect”
This is the first observation of a suppression
