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Renormalizability of the local composite operator A^2 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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Abstract

The local composite operator $A_μ^{2}$ 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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D. Dudal, H. Verschelde, V. E. R. Lemes, M. S. Sarandy, R. F. Sobreiro, S. P. Sorella, J. A. Gracey. 2003-09-04. Renormalizability of the local composite operator A^2 in linear covariant gauges. https://doi.org/10.1016/j.physletb.2003.09.018

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