Speaker
Description
We simulate the kinetics of the chiral phase transition in hot and dense
strongly interacting matter within a novel kinetic-theory approach. Employing
an effective linear $\sigma$ model for quarks, $\sigma$ mesons, and
pions we treat the quarks within a test-particle ansatz for solving the
Boltzmann transport equation and the mesons in terms of classical
fields. The decay-recombination processes like
$\sigma \leftrightarrow \bar{q}+q$ are treated using a kind of
wave-particle dualism using the exact conservation of energy and
momentum. After demonstrating the correct thermodynamic limit for
particles and fields in a "box
calculation'' we apply the simulation to the dynamics of an expanding
fireball similar to the medium created in ultrarelativistic heavy-ion
collisions.
