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Hard QCD probes (I)
Hard probes: high-pT (jets, prompt ), heavy-flavor (D, B, J/Ψ, ...)
Early production ( ~ 1/pT< 0.1 fm/c) in parton-parton scatterings with large Q2
Direct probes of partonic phases Sensitive to dense medium properties: parton Eloss (“jet quenching”), color screening (“onia” suppression), ...
Incoherent processes: direct comparison to baseline "vacuum" (pp) data via “collision scaling”:
TAB # of binary inelastic NN colls .
Production yields calculable via perturbative or classical-field QCD:
Notes: