Finiteness of the Yang-Mills-Chern-Simons action in linear covariant gauges by taking into account gauge copies

Bibliographic Details
Title: Finiteness of the Yang-Mills-Chern-Simons action in linear covariant gauges by taking into account gauge copies
Authors: Azevedo, Daniel O. R., Pereira, Antonio D.
Publication Year: 2025
Collection: High Energy Physics - Phenomenology
High Energy Physics - Theory
Subject Terms: High Energy Physics - Theory, High Energy Physics - Phenomenology
More Details: In recent years, the effects of removing infinitesimal Gribov copies from the path integral of gauge-fixed Yang-Mills-Chern-Simons theories formulated in three-dimensional Euclidean space have been investigated. Part of the interest resides on the fact that such an elimination of gauge copies introduces a mass parameter, the Gribov parameter, which is relevant when the assumptions of the Faddeev-Popov procedure are not well-grounded. Such a parameter enters the propagator of the gauge field which is topologically massive due to the Chern-Simons term. The resulting action, which eliminates infinitesimal Gribov copies in this context, has been constructed in linear covariant gauges and the interplay between the aforementioned mass-parameters allows for a rich phase diagram in which confining and deconfining signatures are observed in the gauge-field propagator. In the present work, we establish the renormalization properties of such a theory at all orders in perturbation theory by means of the algebraic renormalization framework and show that the removal of infinitesimal Gribov copies does not affect the standard non-renormalization properties of standard gauge-fixed Yang-Mills-Chern-Simons theories, i.e., the theory is finite.
Comment: 15 pages + references, no figures
Document Type: Working Paper
Access URL: http://arxiv.org/abs/2502.03284
Accession Number: edsarx.2502.03284
Database: arXiv
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