Thermalization of gluons with Bose-Einstein condensation

Understand

We study the thermalization of gluons far from thermal equilibrium in relativistic kinetic theory.

• The initial distribution of gluons is assumed to resemble that in the early stage of ultrarelativistic heavy ion collisions.
• Only elastic scatterings in static, nonexpanding gluonic matter are considered.
• At first we show that the occurrence of condensation in the limit of vanishing particle mass requires a general constraint for the scattering matrix element.