First page Back Continue Last page Overview Graphics
High-pT @ RHIC: a theorist “guide”
-
APPROACH “A” (based on pQCD, factorization theorem):
- Step 1: pQCD (NLO or LO+K-factor) = PDFs + scatt. matrix + FFs
- Step 2: pQCD + nPDF (shadowing) + pT broadening (Cronin)
-
- So far one can explain peripheral data
-
- Step 3: pQCD + initial-state nuclear effects + Parton energy loss
- Energy loss 1: BDMPS (LPM, thick plasma)
- Energy loss 2: GLV (LPM, thin plasma)
- Energy loss 3: HSW (modified FFs), (g radiation + absorption)
- So far one can ~ explain central colls. (magnitude, pT dependence)
Step 4: pQCD + IS nuc. effects + Energy loss + parton recombination
Tries to explain flavor dependence of central colls. ...
APPROACH “B” (based in “classical” CD):
- Step 1: CGC (gluon saturated nuclear wave function: MLV, ...)
- Step 2: (classical) glue + glue collisions: gg g
- Step 3: Gluon fragmentation (FFs)
- Tries to explain: suppression, Npart scaling, flavor dependence ...
Notes: