Effect of friction on disoriented chiral condensate formation

Abstract

We have investigated the effect of friction on the DCC domain formation. We solve the Newton equation of motion for the O(4) fields, with quenched initial condition. The initial fields are randomly distributed in a Gaussian form. In one dimensional expansion, on the average, large DCC domains can not be formed. However, in some particular orbits, large instabilities may occur. This possibility also greatly diminishes with the introduction of friction. But, if the friction is large, the system may be overdamped and then, there is a possibility of large DCC domain formation in some events.

9 pages, including figures

References in corpus (1)

• Dissipation and Fluctuation at the Chiral Phase Transition

Cited by in corpus (8)

• Stochastic treatment of Disoriented Chiral Condensates within a Langevin description
• Langevin Evolution of Disoriented Chiral Condensate
• Quantum Field Treatment of DCC Dynamics
• Effects of friction on the chiral symmetry restoration in high energy heavy-ion collisions
• The Chiral Phase Transition in Dissipative Dynamics
• Dissipation, noise and DCC domain formation
• Parametric amplification with a friction in heavy ion collisions
• Disoriented chiral condensate in presence of dissipation and noise