Cancellation of infrared divergences in trace of gluon polarization tensor at
![T\neq 0](/img/latex/7d/7d9910b320b410d4badb9c52db95341a-v2.png)
in covariant gauges
Kalashnikov O. K. , Skalozub V. V. , Chub I. V.
Perturbative infrared divergences cancel out algebraically in the trace of the transverse components of the two-loop gluon polarization tensor in covariant gauges at Τ Φ 0. The limit Пй (k4 = 0, | к [ -> 0) of this tensor is zero, regardless of the choice of gauge parameter.