Gauge invariance of the background average effective action
| Autor: | Tibério de Paula Netto, Ilya L. Shapiro, Peter M. Lavrov, Eduardo Antonio dos Reis |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
High Energy Physics - Theory
Physics Physics and Astronomy (miscellaneous) Field (physics) 010308 nuclear & particles physics Background field method High Energy Physics::Lattice FOS: Physical sciences lcsh:Astrophysics Gauge (firearms) 01 natural sciences Symmetry (physics) Theoretical physics High Energy Physics::Theory High Energy Physics - Theory (hep-th) 0103 physical sciences lcsh:QB460-466 Functional renormalization group lcsh:QC770-798 lcsh:Nuclear and particle physics. Atomic energy. Radioactivity Gauge theory 010306 general physics Engineering (miscellaneous) Effective action Gauge fixing |
| Zdroj: | European Physical Journal C: Particles and Fields, Vol 79, Iss 8, Pp 1-9 (2019) European Physical Journal |
| ISSN: | 1434-6052 1434-6044 |
| DOI: | 10.1140/epjc/s10052-019-7153-1 |
| Popis: | Using the background field method for the functional renormalization group approach in the case of a generic gauge theory, we study the background field symmetry and gauge dependence of the background average effective action, when the regulator action depends on external fields. The final result is that the symmetry of the average effective action can be maintained for a wide class of regulator functions, but in all cases the dependence of the gauge fixing remains on-shell. The Yang-Mills theory is considered as the main particular example. Comment: Fits the version accepted in EPJC |
| Databáze: | OpenAIRE |
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