Decay of Color Gauge Fields in Heavy Ion Collisions and Nielsen-Olesen Instability

Abstract

We analyze the behavior of unstable modes in the glasma produced in high energy heavy ion collisions, using a simple model with effective homogeneous longitudinal color electric and magnetic fields. The unstable modes are approximately described as Nielsen-Olesen unstable modes under the homogeneous longitudinal gauge fields. We find that the Nielsen-Olesen unstable modes show properties very similar to those of the exponentially increasing unstable modes in the glasma recently shown by Romatschke and Venugopalan. Although initial gauge fields in the glasma are much stronger than the ones in our model, they decay with the production of the Nielsen-Olesen unstable modes. We discuss why we can reproduce the features of the glasma by using the effective homogeneous weak magnetic fields. Our analysis supports an idea that the decay of the gauge fields in the glasma is caused by Nielsen-Olesen instability.

arXiv comment14pages, 5figures

Cited by in corpus (16)

• Instabilities in non-expanding glasma
• Out of equilibrium dynamics of coherent non-abelian gauge fields
• Schwinger mechanism enhanced by the Nielsen--Olesen instability
• Pair Creation of Massless Fermions in Electric Flux Tube
• Pair Creation in Electric Flux Tube and Chiral Anomaly
• Parton energy loss in glasma
• Parametric instability of classical Yang-Mills fields in a color magnetic background
• Stability of Classical Chromodynamic Fields
• Stability analysis of non-Abelian electric fields
• Anomalous Transport Processes in Turbulent non-Abelian Plasmas
• Shear viscosity of classical Yang-Mills field
• Parametric Instability of Classical Yang-Mills Fields in an Expanding Geometry
• Production of Semi Quark Gluon Monopole Plasma by Glasma Decay
• Quark Pair Production in Expanding Glasma
• Anomalous Gluon Production and Condensation in Glasma
• Schwinger Mechanism with Energy Dissipation in Glasma