Amplification of pionic instabilities in high-energy collisions?

Details Amplification of pionic instabilities in high-energy collisions? Amplification of pionic instabilities in high-energy collisions?

1996-05-03

arxiv.org/abs/hep-ph/9605223v1

Phys.Rev.Lett. 77 (1996) 1226-1229

Physics

High Energy Physics

High Energy Physics - Phenomenology

uuencoded revtex body and 4 ps figures (4 pages total)

Scientific paper

10.1103/PhysRevLett.77.1226

Considering a variety of dynamical scenarios within the linear sigma model, we examine the conditions for pionic modes to be amplified as the chiral field relaxes towards the normal vacuum following the transient restoration of approximate chiral symmetry in a high-energy collision. While Bjorken-type longitudinal expansions appear to be insufficient for amplification for occur, analoguos expansions in two or three dimensions may enhance the low-energy power spectrum by up to an order of magnitude.

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