Abstract
The nonlocal mass operator is considered in Yang-Mills theories in Euclidean space-time. It is shown that the operator can be cast in local form through the introduction of a set of additional fields. A local and polynomial action is thus identified. Its multiplicative renormalizability is proven by means of the algebraic renormalization in the class of linear covariant gauges. The anomalous dimensions of the fields and of the mass operator are computed at one-loop order. A few remarks on the possible role of this operator for the issue of the gauge invariance of the dimension two condensates are outlined.
- Received 31 October 2005
DOI:https://doi.org/10.1103/PhysRevD.72.105016
©2005 American Physical Society