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hep-th2006★ 15 cited
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…
hep-th2004
On the Landau Background Gauge Fixing and the IR Properties of YM Green Functions
Pietro A. Grassi, T. Hurth, A. Quadri
We analyse the complete algebraic structure of the background field method for Yang--Mills theory in the Landau gauge and show several structural simplifications within this approa…
hep-th2004
The Background Field Method and the Linearization Problem for Poisson Manifolds
P. A. Grassi, A. Quadri
The background field method (BFM) for the Poisson Sigma Model (PSM) is studied as an example of the application of the BFM technique to open gauge algebras. The relationship with S…