A general procedure for defining gauge-invariant fields is presented. In this way it is possible to associate gauge-variant Green functions, in some particular gauge, with gauge-invariant quantities. This construction can be done regardless of whether a mass shell exists or not and should be useful for the colored sector in quantum chromodynamics.
History
Publication title
Modern Physics Letters A
Issue
7
Pagination
455-460
ISSN
0217-7323
Department/School
School of Natural Sciences
Publisher
World Scientific Publ Co Pte Ltd
Place of publication
Journal Dept Po Box 128 Farrer Road, Singapore, Singapore, 912805