Emergence of long wavelength pion oscillations following a rapid QCD phase transition

Details Emergence of long wavelength pion oscillations following a rapid QCD phase transition Emergence of long wavelength pion oscillations following a rapid QCD phase transition

1993-08-28

arxiv.org/abs/hep-ph/9308355v1

Nucl.Phys. A566 (1994) 567c-570c

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, uses phyzzx. Talk given at Quark Matter '93, Borl\"ange, Sweden

Scientific paper

10.1016/0375-9474(94)90695-5

To model the dynamics of the chiral order parameter in a far from equilibrium QCD phase transition, we consider quenching in the O(4) linear sigma model. We summarize arguments and numerical evidence which show that in the period immediately following the quench arbitrarily long wavelength modes of the pion field are amplified. This results in large regions of coherent pion oscillations, and could lead to dramatic phenomenological consequences in ultra-relativistic heavy ion collisions. My talk was a description of work done with Frank Wilczek. In these proceedings, I sketch our central results, emphasizing several points that were raised in discussions at the conference.

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