44 citations · 170 across the 8 of their papers we have counts for
9 papers · 1 filter
Background Field Method and Generalized Field Redefinitions in Effective Field Theories
Andrea Quadri
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 c…
Background Field Method and Generalized Field Redefinitions in Effective Field Theories
Andrea Quadri
We show that in a spontaneously broken effective gauge field theory, quantized in a general background -gauge, also the background fields undergo a non-linear (albeit backgrou…
AntiBRST symmetry and Background Field Method
D. Binosi, A. Quadri
We show that the requirement that a SU(N) Yang-Mills action (gauge fixed in a linear covariant gauge) is invariant under both the Becchi-Rouet-Stora-Tyutin (BRST) symmetry as well…
Canonical transformations in gauge theories with non-trivial backgrounds
Daniele Binosi, Andrea Quadri
We show how to implement the background field method by means of canonical transformations and comment on the applications of the method to non-perturbative techniques in non-Abeli…
The Hierarchy Principle and the Large Mass Limit of the Linear Sigma Model
Daniele Bettinelli, Ruggero Ferrari, Andrea Quadri
In perturbation theory we study the matching in four dimensions between the linear sigma model in the large mass limit and the renormalized nonlinear sigma model in the recently pr…
Physical Unitarity for Massive Non-abelian Gauge Theories in the Landau Gauge: Stueckelberg and Higgs
Ruggero Ferrari, Andrea Quadri
We discuss the problem of unitarity for Yang-Mills theory in the Landau gauge with a mass term a la Stueckelberg. We assume that the theory (non-renormalizable) makes sense in some…