More on the non-perturbative Gribov-Zwanziger quantization of linear covariant gauges
| Autor: | Capri, M. A. L., Dudal, D., Fiorentini, D., Guimaraes, M. S., Justo, I. F., Mintz, B. W., Palhares, L. F., Pereira, A. D., Sobreiro, R. F., Sorella, S. P. |
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| Rok vydání: | 2015 |
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| Zdroj: | Phys. Rev. D 93, 065019 (2016) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevD.93.065019 |
| Popis: | In this paper, we discuss the gluon propagator in the linear covariant gauges in $D=2,3,4$ Euclidean dimensions. Non-perturbative effects are taken into account via the so-called Refined Gribov-Zwanziger framework. We point out that, as in the Landau and maximal Abelian gauges, for $D=3,4$, the gluon propagator displays a massive (decoupling) behaviour, while for $D=2$, a scaling one emerges. All results are discussed in a setup that respects the Becchi-Rouet-Stora-Tyutin (BRST) symmetry, through a recently introduced non-perturbative BRST transformation. We also propose a minimizing functional that could be used to construct a lattice version of our non-perturbative definition of the linear covariant gauge. Comment: 15 pages, 1 figure; V2 typos fixed and inclusion of section on the ghost propagator. To appear in PhysRev D |
| Databáze: | arXiv |
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