Renormalizability of the local composite operator A² in linear covariant gauges

D. Dudal , H. Verschelde , V.E.R. Lemes , M.S. Sarandy , R.F. Sobreiro , S.P. Sorella , J.A. Gracey

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classification ✦ hep-th

keywords compositecovariantgaugeslinearlocaloperatoralgebraicanalysed

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The local composite operator $A_{\mu}^{2}$ is analysed within the algebraic renormalization in Yang-Mills theories in linear covariant gauges. We establish that it is multiplicatively renormalizable to all orders of perturbation theory. Its anomalous dimension is computed to two-loops in the MSbar scheme.

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Renormalizability of the local composite operator A² in linear covariant gauges

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