Gauge invariance of the background average effective action

Autor: Peter M. Lavrov, Eduardo Antonio dos Reis, Tibério de Paula Netto, Ilya L. Shapiro
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: European Physical Journal C: Particles and Fields, Vol 79, Iss 8, Pp 1-9 (2019)
Druh dokumentu: article
ISSN: 1434-6044
1434-6052
DOI: 10.1140/epjc/s10052-019-7153-1
Popis: Abstract 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.
Databáze: Directory of Open Access Journals
Nepřihlášeným uživatelům se plný text nezobrazuje