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Файл:КГП_презенташка.pdf
Two-particle correlations
Short range correlations (0 < |Δη| < 1): Jet + Ridge
Long range correlations (2 < |Δη| < 4): Ridge
Ridge disappears at high pT 65
Jet-track correlation
MC
Data
Relative contribution of low-pT tracks grows with AJ & spreads at large distances to the jet axis
66
Prompt photons RAA vs. centrality
67
Charged hadron pT-spectra and RAA
RAA = |
σinelpp |
d2N |
AA |
/ dp dη |
|
|
“QCD Medium” |
RAA>1: enhancement |
|
|
|
T |
~ |
|
|
|
RAA=1: no medium effect |
||
Ncoll |
d2σpp |
/ dpT dη |
|
“QCD Vacuum“ |
|
||||
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RAA<1: suppression |
||||||
Pb Pb
PbPbPbPb
Strong momentum dependence of suppression factor is observed
68