Low momentum propagators at two loops in gluon mass model

Understand

We compute the two loop corrections to the gluon propagator for low momentum in a gluon mass model.

• This model has recently been proposed as an alternative to the Gribov construction in the way it handles Gribov copies in the gauge fixing.
• The corrections provide improvements for estimating the point where the gluon propagator freezes in relation to lattice data.