Amplification of pionic instabilities in high-energy collisions?

Abstract

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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Cited by in corpus (53)

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• Spinodal phase separation in relativistic nuclear collisions
• Forming Disoriented Chiral Condensates through Fluctuations
• Thermal Effective Potential of the O(N) Linear sigma Model
• Disoriented Chiral Condensate: Theory and Experiment
• Chiral Fluid Dynamics and Collapse of Vacuum Bubbles
• Statistical Properties of the Linear Sigma Model
• Mean-field treatment of the linear sigma model in dynamical calculations of DCC observables
• Stochastic treatment of Disoriented Chiral Condensates within a Langevin description
• DCC dynamics with the SU(3) linear sigma model
• First-order chiral phase transition may naturally lead to the ``quenched'' initial condition and strong soft-pion fields
• Non-Equilibrium Production of Photons via π^0\to 2γin DCC's
• Evolution of Inhomogeneous Condensates: Self-consistent Variational Approach
• Non-equilibrium evolution of a `Tsunami': Dynamical Symmetry Breaking
• Photoproduction Enhancement from Non Equilibrium Disoriented Chiral Condensates
• Coherent amplification of classical pion fields during the cooling of droplets of quark plasma
• Larger Domains from Resonant Decay of Disoriented Chiral Condensates
• Initial Time Singularities in Non-Equilibrium Evolution of Condensates and Their Resolution in the Linearized Approximation
• Dileptons from Disoriented Chiral Condensates
• Langevin Evolution of Disoriented Chiral Condensate
• Dynamical simulation of DCC formation in Bjorken rods
• Anomaly Induced Domain Formation of Disoriented Chiral Condensates
• Lifetime of a Disoriented Chiral Condensate
• Dynamical Pion Production via Parametric Resonance from Disoriented Chiral Condensate
• Pion Breather States in QCD
• Quantum Field Treatment of DCC Dynamics
• The Likelihood of DCC Formation
• Analysis of DCC Domain Structure
• Dynamical generation of the constituent mass in expanding plasma
• Comments on compositeness in the SU(2) linear sigma model
• Effects of friction on the chiral symmetry restoration in high energy heavy-ion collisions
• Effect of friction on disoriented chiral condensate formation
• Disoriented chiral condensate formation from tubes of hot quark plasma
• Photon Production from Nonequilibrium Disoriented Chiral Condensates in a Spherical Expansion
• Nonlinear evolution of the momentum dependent condensates in strong interaction: the ``pseudoscalar laser''
• Anomalous Pseudoscalar-Photon Vertex In and Out of Equilibrium
• On the microscopic dynamics of DCC formation
• Isospin Fluctuations from Multiple Domains of Disoriented Chiral Condensate
• Field dynamics and kink-antikink production in rapidly expanding systems
• The Chiral Phase Transition in Dissipative Dynamics
• Charged-to-neutral correlation at forward rapidity in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV
• Study of γ-charge correlation in heavy ion collisions, various approaches
• Out-of-equilibrium Photon Production from Disoriented Chiral Condensates
• DCC Dynamics in (2+1)D-O(3) model
• Search for fingerprints of disoriented chiral condensates in cosmic ray showers
• Topologically nontrivial time-dependent chiral condensates
• DCC: Attractive Idea Seeks Serious Confirmation
• Photon production from non-equilibrium disoriented chiral condensates in a longitudinal expansion : A theoretic framework
• The topological approach to baryon-antibaryon and meson production in rapidly expanding Bjorken rods