Hot and Dense Nuclear Matter - Department of Physics and Astronomy
Hot and Dense Nuclear Matter - Department of Physics and Astronomy
Hot and Dense Nuclear Matter - Department of Physics and Astronomy
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Evolution <strong>of</strong> Heavy Ion Collisions<br />
Preequilibrium<br />
Thermalization<br />
QGP<br />
phase?<br />
Mixed<br />
Phase<br />
Hadronization<br />
Expansion<br />
T < 0<br />
0.1 fm/c<br />
~ 1 fm/c<br />
3-4 fm/c<br />
8–10 fm/c<br />
10 – 20 fm/c<br />
γ, γ∗→ e + e - , μ + μ −<br />
Hard processes (early<br />
stages): Real <strong>and</strong> virtual<br />
photons, leptons, high p T<br />
particles.<br />
π, K, p, n, φ, Λ, Δ, Ξ, Ω, d,…<br />
S<strong>of</strong>t hadrons reflect<br />
medium properties later<br />
in the collision after<br />
hadronization (chemical<br />
freeze-out).<br />
<strong>Hot</strong> <strong>and</strong> <strong>Dense</strong> <strong>Nuclear</strong> matter 11