Renormalizability of the dimension two gluon operator $A^{2}$ in a class of nonlinear covariant gauges

Details Renormalizability of the dimension two gluon operator $A^{2}$ in a class of nonlinear covariant gauges Renormalizability of the dimension two gluon operator $A^{2}$ in a class of nonlinear covariant gauges

2006-11-21

arxiv.org/abs/hep-th/0611231v3

J.Phys.A40:4025-4032,2007

Physics

High Energy Physics

High Energy Physics - Theory

Scientific paper

10.1088/1751-8113/40/14/017

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 $A_{\mu}^{a}A_{\mu}^{a}$ can be introduced in a mulptiplicatively renormalizable way.

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