Renormalization of the asymptotically expanded Yang-Mills spectral action
arXiv:1104.5199 · doi:10.1007/s00220-012-1464-5
Abstract
We study renormalizability aspects of the spectral action for the Yang-Mills system on a flat 4-dimensional background manifold, focusing on its asymptotic expansion. Interpreting the latter as a higher-derivative gauge theory, a power-counting argument shows that it is superrenormalizable. We determine the counterterms at one-loop using zeta function regularization in a background field gauge and establish their gauge invariance. Consequently, the corresponding field theory can be renormalized by a simple shift of the spectral function appearing in the spectral action. This manuscript provides more details than the shorter companion paper, where we have used a (formal) quantum action principle to arrive at gauge invariance of the counterterms. Here, we give in addition an explicit expression for the gauge propagator and compare to recent results in the literature.
28 pages; revised version. To appear in CMP. arXiv admin note: substantial text overlap with arXiv:1101.4804
References in corpus (3)
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