The field strength correlator from QCD sum rules
arXiv:hep-ph/9908318 · doi:10.1016/S0920-5632(00)00598-3
Abstract
The gauge invariant two-point correlator for the gluon field strength tensor in analysed by means of the QCD sum rule method. To this end, we make use of a relation of this correlator to a two-point function for a quark-gluon hybrid in the limit of the quark mass going to infinity. From the sum rules a relation between the gluon correlation length and the gluon condensate is obtained.
5 pages, 1 figure, QCD Euroconference