Approaches to QGP Detection (II): -Large cross-section probes -

• Info: ¥ Conditions at mixed & hadronic freeze-out phases.

• 1. Strangeness Enhancement:

  • Large gluon densities (gg® ss), teq.s~ tQGP,
  • and/or (partial) decrease of ms
  • Production of K+, K-, L, X, W mesons:
  • Strange hadrons

• 2. In-medium vector mesons :

• (Partial) chiral symmetry restoration

  • Mass, width of r, w,F. BR F ® e+e-,K+K- (dM<5 MeV)
  • Electrons, muons, charged hadrons

• 3. Temperatures, velocities at freeze-out :

• Expansion dynamics mixed phase

• mT distributions below ~2 GeV/c Þ Hadrons