TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhysProc.7.045
TI  - Background field method and generalized field redefinitions in effective field theories
PY  - 2022/06/22
UR  - https://scipost.org/SciPostPhysProc.7.045
JF  - SciPost Physics Proceedings
JA  - SciPost Phys. Proc.
VL  - 
IS  - 7
SP  - 045
A1  - Quadri, Andrea
AB  - We study the non-linear background field redefinitions arising at the quantum level in a spontaneously broken effective gauge field theory. The non-linear field redefinitions are crucial for the symmetric (i.e. fulfilling all the relevant functional identities of the theory) renormalization of gauge-invariant operators. In a general $R_\xi$-gauge the classical background-quantum splitting is also non-linearly deformed by radiative corrections. In the Landau gauge these deformations vanish to all orders in the loop expansion.
ER  -

@Article{10.21468/SciPostPhysProc.7.045,
	title={{Background field method and generalized field redefinitions in effective field theories}},
	author={Andrea Quadri},
	journal={SciPost Phys. Proc.},
	pages={045},
	year={2022},
	publisher={SciPost},
	doi={10.21468/SciPostPhysProc.7.045},
	url={https://scipost.org/10.21468/SciPostPhysProc.7.045},
}