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arXiv · hep-ph/9805382

Pion Breather States in QCD

James N. Hormuzdiar·Stephen D. H. Hsu
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Abstract

We describe a class of pionic breather solutions (PBS) which appear in the chiral lagrangian description of low-energy QCD. These configurations are long-lived, with lifetimes greater than $10^3$ fm/c, and could arise as remnants of disoriented chiral condensate (DCC) formation at RHIC. We show that the chiral lagrangian equations of motion for a uniformly isospin-polarized domain reduce to those of the sine-gordon model. Consequently, our solutions are directly related to the breather solutions of sine-gordon theory in 3+1 dimensions. We investigate the possibility of PBS formation from multiple domains of DCC, and show that the probability of formation is non-negligible.

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James N. Hormuzdiar, Stephen D. H. Hsu. 1998-05-19. Pion Breather States in QCD. https://doi.org/10.1103/physrevc.59.889

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