Background Field Method and Generalized Field Redefinitions in Effective Field Theories

Autor:	Quadri, Andrea
Rok vydání:	2021
Předmět:	High Energy Physics - Theory High Energy Physics - Phenomenology
Druh dokumentu:	Working Paper
Popis:	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. Comment: 8 pages. Submitted to the Proceedings of the 15th International Symposium on Radiative Corrections:Applications of Quantum Field Theory to Phenomenology,FSU, Tallahasse, FL, USA, 17-21 May 2021
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2109.12148 Zobrazit plný text záznamu View this record from Arxiv