2001/04/25 by Shinji Maedan, S. Maedan · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Quantum Chromodynamics and Particle Interactions #Quantum and Classical Electrodynamics #hep-ph
paper · pdf · doi:10.1016/s0370-2693(01)00697-9
published as Phys.Lett. B512 (2001) 73-77 · LaTeX, 10 pages
arxiv created 2001/04/25 · openalex publication_date 2001/07/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We show how parametric resonance mechanism follows quench mechanism in the classical linear sigma model. The parametric resonance amplifies long wavelength modes of the pion for more than 10 fm/c. The shifting from the quench mechanism to the parametric resonance mechanism is described by a time dependent quantity. After the quench mechanism is over, that quantity has an oscillating part, which causes the parametric resonance. Since its frequency is 2 mπ~(mπ : pion mass), very long wavelength modes such as k = 40 MeV of the pion are amplified by the parametric resonance.