出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：The gluon propagator is computed in large asymmetric lattices, accessing momenta around 100
MeV and smaller. Our study tries to check the compatibility of the recent solutions of the gluonghost
Dyson-Schwinger equations with lattice results. In particular the exponent k, which characterizes
the solutions for the infrared, is measured. Results favours a vanishing zero momentum
gluon propagator. We also report on the compatibility of various functional forms used to fit the
Dyson-Schwinger solution for the full range of momenta and the lattice gluon propagator.
