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200220032004200520067021
Abstract:
Relativistic heavy ion collisions produce thousands of particles, and it is sometimes difficult to believe that these processes allow for a theoretical description directly in terms of the underlying theory - QCD. However once the parton densities are sufficiently large, an essential simplification occurs - the dynamics becomes semi-classical. As a result, a simple ab initio approach to the nucleus--nucleus collision dynamics may be justified. In these lectures, we describe the application of these ideas to the description of multi--particle production in relativistic heavy ion collisions. We also discuss the role of semi-classical fields in the QCD vacuum in hadron interactions at low and high energies.
  • lectures: Cargese 2001/08/06
  • scattering: heavy ion
  • hadron: multiple production
  • quantum chromodynamics
  • vacuum state
  • symmetry breaking: chiral
  • momentum spectrum: parton
  • field theory: semiclassical
  • perturbation theory
  • nonperturbative