The field strength correlator from QCD sum rules
Abstract
The gauge invariant two-point correlator for the gluon field strength tensor is 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.
- Publication:
-
Nuclear Physics B Proceedings Supplements
- Pub Date:
- June 2000
- DOI:
- 10.1016/S0920-5632(00)00598-3
- arXiv:
- arXiv:hep-ph/9908318
- Bibcode:
- 2000NuPhS..86..421E
- Keywords:
-
- High Energy Physics - Phenomenology
- E-Print:
- 5 pages, 1 figure, QCD Euroconference