HIGHLIGHTS
SUMMARY
The saturation of the gluon propagator in the deep infrared has been interpreted as an unequivocal signal of a gluon mass; and the existence of an inflection point in the same function has been argued to lead to a non-positive gluon spectral density, and the ensuing loss of reflection positivity for the dressed gluons. Similarly, the masslessness of the ghost induces a maximum in the gluon propagator, and a zero crossing in the form factors of the three-gluon vertex, followed by an infrared divergence for vanishing momenta. The corresponding SDEs are derived . . .
If you want to have access to all the content you need to log in!
Thanks :)
If you don't have an account, you can create one here.