Renormalizability of the dimension two gluon operator in a class of nonlinear covariant gauges
arXiv:hep-th/0611231 · doi:10.1088/1751-8113/40/14/017
Abstract
In this work we discuss a class of nonlinear covariant gauges for Yang-Mills theories which enjoy the property of being multiplicatively renormalizable to all orders. This property follows from the validity of a linearly broken identity, known as the ghost Ward identity. Furthermore, thanks to this identity, it turns out that the local composite dimension two gluon operator can be introduced in a mulptiplicatively renormalizable way.