Schwinger Mechanism with Energy Dissipation in Glasma

Abstract

Initial states of glasma in high energy heavy ion collisions are longitudinal classical color electric and magnetic fields. Assuming finite color electric conductivity, we show that the color electric field decays by quark pair production with the life time of the order of $Q_s^{-1}$, i.e. the inverse of the saturation momentum. Quarks and anti-quarks created in the pair production are immediately thermalized as far as their temperature ${\beta }^{-1}$ is lower than $Q_s$. Namely, a relaxation time of the quarks to be thermalized is much shorter than $Q_s^{-1}$ when ${\beta }^{-1}\ll Q_s$. We also show that the quarks acquire longitudinal momentum of the order of $Q_s$ by the acceleration of the electric field. To discuss the quark pair production, we use chiral anomaly which has been shown to be very powerful tool in the presence of strong magnetic field.

9 pages

References in corpus (9)

• Energy density of the Glasma
• Bottom-up isotropization in classical-statistical lattice gauge theory
• Chemical thermalization in relativistic heavy ion collisions
• Expanding color flux tubes and instabilities
• Instabilities in non-expanding glasma
• Decay of Color Gauge Fields in Heavy Ion Collisions and Nielsen-Olesen Instability
• Thermalization of Color Gauge Fields in High Energy Heavy Ion Collisions
• Fermion pair production in QED and the backreaction problem in (1+1)-dimensional boost-invariant coordinates revisited
• Pair creation in boost-invariantly expanding electric fields and two-particle correlations

Cited by in corpus (2)

• Anomalous Gluon Production and Condensation in Glasma
• Quark Pair Production in Expanding Glasma