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Overview
“Jet physics” results @ RHIC (w/o full jet reco):
(1) Inclusive high pT spectra, (2) di-hadron φ,η high-pT triggered correlations.
confronted to non-Abelian radiative energy loss in QGP “paradigm”.
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High pT (leading) hadron suppression data in central AA:
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1. Magnitude ÞVery dense medium: dNg/dy ~ 1000 (~ dNch/dη). OK
2. Transverse momentum dependence: flat pT . OK
3. Centrality dependence. OK
4. Light-meson species dependence (π0 vs. η). OK
5. Center-of-mass energy dependence (SPS-20 GeV, RHIC-62,200 GeV). OK
6. Non-Abelian radiation. OK
7. Path-length dependence. OK ?
8. System-size (CuCu vs. AuAu) dependence. OK ?
9. Heavy vs. light quark suppression. OK ?
Modified high pT di-hadron (φ,η) correlations in central AA:
1. Disappeareance of away-side azimuthal dijet peak. OK
2. Enhanced (“volcano”-like) away-side associated yield at lower pT. (?)
3. Broadening of near-side pseudo-rapidity correlations. OK
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