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High pT (Run-1): AuAu vs (scaled) pp [PRL88:022301 (2002)]
Jet physics in HI collisions High-pT hadron physics:
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Standard jet algorithms fail in HI collisions below pT ~ 40 GeV/c (at sNN = 200 GeV) due to large soft background.
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Hadrons with pT >2 GeV/c products of parton fragmentation ("leading particle")
Peripheral AuAu consistent with pp binary-scaled yields
Central AuAu yields suppressed by a factor 2. - 4.
Notes: